EXERCISE 1 Give the correct form of the adjectives and adverbs in brackets: 1. This chair is ..........................………………….. than that one. (comfortable) 2. Your flat is .....................………....... than mine. ( large) 3. The weather today is ........................……… than it was yesterday. (hot) 4. The Nile is the ........................……………………….. river in the world. (long) 5. Chinese bicycles are ................…........……………….. than Japanese ones. (bad) 6. Mathematics is ........................…………………...….. than English. (difficult) 7. Ho Chi Minh is the ............................………………. city in Viet Nam. (big) 8. He drives ................................. .. ……………than his friend. (careful) 9. She sings ........................……………………….. in this school. (beautiful) 10. I read ............................……………………….. than my sister. (slow) 11. Grace is ...........................………………….. girl in our class. (old) 12. This exercise is .........................…….…………..than that one. (easy) 13. He is twice .........................…….…………..as you. (fat) 14. Nam is .........................…….………….. student of all. (noisy) 15. My cold is .........................…….………….. today than it was yesterday. (good) EXERCISE 2 Choose the best option to complete the following sentences: 1. The more she smiles , ................ she becomes. A. more graceful B. the most graceful C. most graceful D. the more graceful 2. Hotels have developed …………………… restaurants. A. as rapidly as B. so rapidly as C. as rapid as D. more rapid 3. Can Tho bridge is the …………………… one in the South of Viet Nam . A. long B shortest C. longest D. longer 4. Albert Einstein’s contributions to scientific theory were ................ those of Galileo and Newton A. important than B. more important C. the most important D. as important as 5. Impalas cannot move as ................ cheetahs but they are more efficient runners. A. faster than B. fast as C. fast D. are fast as 6. Both are informative articles, but this one is ................ . A. best B. the best C. most D. better 7. She is the .………… girl in our town . A. more beautiful B. beauty C. most beautiful D. more beautifully 8. The harder you learn............. A. The better is your English B. The better will be your English C. The better becomes your English D. The better your English will be 9. Jim is the ................. in his class. A. clever B. cleverest C. cleverer D. more clever 10. Of the two shirts, this one is ................... A. the prettiest B. the most pretty C. prettier D. the prettier 11. Your house is ................. mine. A. as bigger as B. many times as big as C. much big as D. not many times big 12. Last year it wasn’t as cold as this year. A. This year it is as colder than last year. B This year it is colder than last year. C. This year it isn’t as cold as last year. D. This year it isn’t colder than last year. 13. She is older than me. A. I’m more younger than her. B. I’m as younger as her. C. I’m more young than her. D. I’m younger than her. 14. The test is not ………………… A. as difficult as it was last month. B. so difficult as it was last month C. more difficult as it was last month. D. Both A & B are correct 15. The Nile River is ………………… of all. A. longer B. the longest C. long D. longest 16. .................. we read, .................. we know. A. The most/ the most B. The more/ the more C. Most/ most D. More/ more 17. It gets ................... Let’s go swimming. A. hot and hot B. the more hot C. more and more hot D. hotter and hotter 18. Peter usually drives .................. Mary. A. more fast B. more fast than C. more fast D. faster 19. The problem seems to be .................. A. more serious B. more serious than C. more serious as D. more and more serious 20. Peter can not earn .................. his wife. A. as many money as B. as much money as C. as many money than D. as much money than 21. Prices get .................. A. high and high B. highest and highest C. more and more high D. higher and higher 22. The more manufacturers advise, .................. they sell. A. the most products B. the products more C. the more products D. most products 23. ................. a car is ................. it is. A. The more expensive/ the comfortabler B. The most expensive/ the most comfortable C. The more expensive/ the more comfortable D. The less expensive/ the more comfortable- 24. Of the five students. Mary is ................. A. more intelligent B. the more intelligent C. most intelligent D. the most intelligent 25. Steel is ................ than wood. A. more heavy B. as heavy C. heavier D. more heavier 26. A super market is …………………… a shopping center. A. less convenient as B. less convenient than C. not so convenient than D. the most convenient as 27. Viet Nam becomes …………………… to foreign tourists. A. more and most attractive B. the more attractive C. much and more attractive D. more and more attractive 28. This car is …………………… than mine. A. less expensive B. as expensive C. expensive D. not so expensive 29. Tim’s grades are …………………… than John. A. worse B. worst C. as bad D. so bad 30. The …………………… we start, the sooner we will be back. A. early B

2. This is the most interesting novel I _____. *

A. ever read

B. like reading

C. have ever read

D. often read

3. Beijing is one of ________ polluted cities in the world. *
A. more
B. more and more
C. the most
D. the more and more

5. The _____ food in Britain is chips. *
A. more popular
B. more and more popular
C. delicious
D. most popular

15. I first have visited Ho Chi Minh Mausoleum with my family in 2018. *

Choose the word or phrase that needs correcting.

A. first

B. have visited

C. with

D. my

16. There is a lot of big trees in my grandparents’ garden. *

Choose the word or phrase that needs correcting.

A. is

B. a lot of

C. in

D. grandparents’

17. I can TAKE CARE OF myself every day. *

Choose the word or phrase that has the SAME meaning to the underlined word.

A. take after

B. look after

C. famous for

D. take part in

( Làm được bao nhiêu thì làm, ko cần làm hết. Nếu làm hết thì tốt. )

EX 1: Choose A,B,C or D
1. The harder you work, _____________________.
A. you will get higher marks B. the higher marks will you get
C. the higher marks you will get D. you are the more marks.
2. Hoa can't speak English _____________ Mai does.
A. more fluently than B. the most fluently C. as fluently as D. so fluently than
3. The more electricity you use,______________________ .
A. the higher the bill will be B. the bill is higher
C. the bill will be higher D. the higher the will the bill be

4. The longer he waited, ___________________ .
A. the more impatient he became B. he came the most impatient
C. he became more impatient D. the more impatient did he become
5. As the economic crises, ________________ people spend money on buying new houses.
A. more fewer B. the more fewer C. fewer and fewer D. more and more fewer
6. ___________________________, the more unhappy .he becomes.
A. The richest he gets B. The richer does he get
C. The richer he gets D. The more rich he gets
7. The older the man gets, ____________________ .
A. the hardly he works B. he works more and more harder
C. the harder does he work D. the harder he works
8. Because of the development of information technology, ______go out to work. They work at their
home.
A. more fewer people B. fewer and fewer people
C. more and more few people D. the fewest people
9. The more you practise speaking English, ______________________ .
A. the more fluently you will gain B. the more and more fluently you will gain
C. the more fluent you will gain D. you will gain it more fluently
10. Public transport is becoming ___________________ .
A. more and more convenient B. the more convenient C. as convenient D. the most convenient
12. The more he talked, __________________ .
A. the more confused I got. B. the more and more confused I got
C. I got more and more confused D. the most confused I got.
13. The problem was ________________ we thought at first.
A. more and more serious than B. much more serious than
C. the most serious D. more seriously than
14. The more expensive the hotel is, _______________________ .
A. the service is more comfortable B. the more and more comfortable the service is
C. the more comfortable the service is D. the service is the most comfortable
15. The weather is getting ______________________ this year.
A. more hotter and more hotter B. more and more
C. more and more hotter D. hotter and hotter
16. Thanh cooks better than Mai does.
A. Thanh cooks worse than Mai does. B. Mai can't cook as good as Thanh does.

C. Mai cooks better than Thanh does. D. Mai can't cook as well as Thanh does.
17. Getting a well-paid job ______________________ .
A. has become the most difficult B. becomes as difficult
C. will become more difficult. D. is becoming more and more difficult.
18. John runs more slowly than Peter does.
A. Peter runs as slowly as John does. B. Peter runs faster than John does.
C. Peter can't run faster than John does. D. Peter runs more slowly than John does.
19. The problem is becoming ___________________ as we discussed.
A. more and more complicated B. more complicated
C. most complicated D. as complicated
20. The sooner we start, _____________________ .
A. the more early we arrive B. the earlier we will arrive
C. the earlier will we arrive D. we will arrive early
21. ............... you study for the exams,................ you will do it.
a. The harder / the better b. The more / the much
c. The harder / the much d. The more hard / the more good
22. My neighbor is driving me mad! It seems that .................. it is at night ................ he plays his
music!
a. the less / the more loud b. the less/ less
c. the more / the more loudlier d. the later/ the louder
23. Thanks to the progress of science and technology, our lives have become .............. .
a. more and more good b. better and better
c. the more and more good d. the more hard / the more good
24. It gets ................ when the winter is coming.
a. cold and cold b. the coldest and coldest c. colder and colder d. more and more cold
25. As she did so, her parents became ......................
a. the angriest b. the most angry c. the more angry d. angrier and angrier
26. He spent a year in India and loves spicy food. ................... the food is, ................. he likes it
a. The hotter / the more and more b. The hotter / the more
c. The more and more hot / the more d. The hottest / the most
27. Of course you can come to the party, ..........................
a. the more and merrier b. the more and the merrier
c. the more and merrier d. the more and more merrier
28. It gets ................... to understand what professor has explained.

a. the more difficult b. more difficult than
c. difficult more and more d. more and more difficult
29. You must drive slower in built up areas. ........... you drive in the city, it is ........ that you will have
an accident.
a. The faster and faster/ the more b. The faster/ the more probable
c. The more and more fast / the more and more probable d. The more fastly/ the probable
30. He finds Physics ........................ other science subjects.
a. far more difficult than b. many more difficult than
c. too much more difficult than d. more much difficult than
31. .................... he drank, .............................. he became.
a. More/ more violent b. The most / the most violent
c. The more/ the more violent d. The less / less violent
32 Mary was ................... of the two sisters.
a. the clever b. as clever as c. the cleverer d. the cleverest
33. Earning has always been the thing that pleases him most . .................. he becomes, ...................he
is.
a. The more rich / the more happy b. The richest / the happiest
c. The richer / the happier d. Richer and richer / happier and happier
34. The faster we finish, ....................
a. the sooner we can leave b. we can leave sooner and sooner
c. the sooner can we leave d. we can leave the sooner
35. The climber was seventy miles in the wrong direction and got .......................
a. more panicked b. the more panicked
c. more than panicked d. more and more panicked
36. The more you pull on it, ..................... it gets.
a. the tightest b. the tighter c. the more tightest d. the most tightest
37. The more cars people produce, ................... cheaper they are.
A. the B. the cars have C. the more D. the cars are
38. Is her health getting ........................... and ...........................?
A. bad / bad B. good / good C. worse / worse D. more /
more
39. ................... we eat, the fatter we become.
A. The much B. The more D. Many D. A lot of
40. The test becomes ...................... and ......................
A. hard / hard B. difficult / difficult C. harder / harder D. difficulty
/ difficulty

41. His health is getting ...................... and ...................... .
A. good / good B. better / better C. bad / bad D. well / well
42. The more paper we save, ................... preserved.
A. more is wood pulp B. the more wood pulp is
C. wood pulp is D. the much wood pulp is
43. The more polluted air we breathe, ................... we get.
A. the more weaker B. the more weak C. the weaker D. weaker more
44. The more we study, the ....................... we are.
A. more good B. better C. better than D. good
45. The more I tried my best to help her, ......................... she became.
A. less lazy B. the lazier C. the more lazy D. lazier
46. “What’s your thought of her presence here?” “The longer she stays, .................I dislike her.”
A. the most B. the very more C. much more D. the more
47. The weather becomes ..........................
A. colder with colder B. colder and colder
C. colder and more cold D. more and more cold
48. The more he slept, ........................ irritable he became.
A. the most B. the very more C. much more D. the more
49. ................. he worked, the more money he earned.
A. The more hard B. The hard C. The harder D. The hardest
50. ................ I get to know Jim, the more I like him.
A. For more B. More C. The more D. The most
51. The competition makes the price of goods .........................
A. most cheap and cheap B. cheaper and cheaper
C. more cheap and more cheap D. cheaper and more cheaper
52. That factory is producing ................... pollution.
A. more and more B. better and better C. less and least D. more and less
53. The ……..….. I read about history, the ………….. it makes me realize how relevant history is for
us today.
A. more / better B. better / better C. more / more D. better /
more
54. The less we study, the .................... we are.
A. worse B. bad C. well D. good
55. ................. the match was, the more spectators it attracted.

A. The most interesting B. The best interesting C. The more interesting D. The
interesting
56. The more running water you use, .........................
A. your bill will be higher B. will be higher your bill
C. the higher your bill will be D. the highest your bill will be
57. ............... you study for the exams,................ you will do it.
a. The harder/ the better b. The more/ the much
c. The harded/ the much d. The more hard/ the more good
58. My neighbor is driving me mad! It seems that .................. it is at night ................ he plays his
music!
a. the less/ the more loud b. the less/ less
c. the more/ the more loudlier d. the later/ the louder
59. Thanks to the progress of science and technology, our lives have become .............. .
a. more and more good b. better and better
c. the more and more good d. the more hard/ the more good
60. It gets ................ when the winter is coming.
a. cold and cold b. the coldest and coldest
c. colder and colder d. more and more cold
61. The more waste paper we recycle, _______ .
A. the more trees we preserve B. the less trees we preserve
C. the most trees we preserve D. the least trees we preserve
62. There are ______ diseases being treated by laser beams.
A. more or less B. more than C. more and more D. less than
63. “We produce more food. It gets cheap. ”means _______.
A. the more food we produce, the cheaper it gets B. the most food we
produce, the cheapest it gets
C. the least food we produce, the less cheap it gets D. most food we produce,
cheapest it gets
63. ______ we jog, _______ we are.
A. the most / the healthiest B. the most / the healthier
C. the more / the most healthy D. the more / the healthier
64. The winter is coming, it is getting _______.
A. more cold B. the most cold C. colder and colder D. the more cold
65. The _____ things are produced, the ______ prices are.
A. more / cheaper B. most / cheapest C. much / cheap D. many / cheaper

66. _____ we read, ______ we know.
A. the most / the most B. the more / the more C. most / most D. more/ more
67. It gets ______ . let’s go swimming.
A. hot and hot B. the more hot C. more and more hot D. hotter and hotter
68. Minh usually runs ______ Hung.
A. more fast B. more fast than C. the fastest D. faster than
69. The problem seems to be _____.
A. most serious B. more serious than C. more serious as D. more and more serious
70. Prices get ______.
A. high and high B. highest and highest C. more and more high D. higher and higher

Question 4: Fill in each numbered blank with a suitable word.

If you live in a city, you probably see many people, hear the (1) .................... of traffic, and smell the pollution (2) .................................. cars and factories.We are entering a new time in (3) ....................... history of the world. Before this, most (4) .................... were farmers.They lived in the country. Now many people are leaving the farms and moving into the cities. They are looking for better jobs. THe cities are growing very quickly. Most cities are very crowded.People are driving more cars, burning more fuel, (5) ......................... more water, eating more food, making more garbage, and producing more things in factories than (6) ............................. before.Life is becoming difficult.

Some governments are trying to plan the future \. They are building new roads , putting (7) ...................... new houses, looking for more water, and limiting growth in certain areas. Still, city planners are getting worried .People are crowding into the cities (8)....................... than cities can take them. The cities are running out (9).............................. room. WHat is the answer to this problem?

1. The more she smiles , ................ she becomes

.A. more graceful B. the most graceful C. most graceful D. the more graceful

2. Hotels have developed …………………… restaurants

.A. as rapidly as B. so rapidly as C. as rapid as D. more rapid

3. Can Tho bridge is the …………………… one in the South of Viet Nam.

A. long B. shortest C. longest D. longer

4. Albert Einstein’s contributions to scientific theory were ................ those of Galileo and Newton.

A. important than B. more important C. the most important D. as important as

5. Impalas cannot move as ................ cheetahs but they are more efficient runners.

A. faster than B. fast as C. fast D. are fast as

6. Both are informative articles, but this one is ................ .

A. best B. the best C. most D. better

7. She is the .………… girl in our town

.A. more beautiful B. beauty C. most beautiful D. more beautifully

8. The harder you learn.............

A. The better is your English B. The better will be your English C. The better becomes your English D. The better your English will be

9. Jim is the ................. in his class
A. clever B. cleverestC. cleverer D. more clever

10. Of the two shirts, this one is ...................

A. the prettiest B. the most prettyC. prettier D. the prettier

11. Your house is ................. mine.

A. as bigger as B. many ti es as big asC. much big as D. not many times big

12. Last year it wasn’t as cold as this year

.A. This year it is as colder than last year. B. This year it is colder than last year.C. This year it isn’t as cold as last year. D. This year it isn’t colder than last year.

13. She is older than me.

A. I’m more younger than her. B. I’m as younger as her.C. I’m more young than her. D. I’m younger than her.

14. The test is not …………………

A. as difficult as it was last month. B. so difficult as it was last month C. more difficult as it was last month. D. Both A & B are correct

15. The Nile River is ………………… of all.

A. longer B. the longest C. long D. longest

16. .................. we read, .................. we know.

A. The most/ the most B. The more/ the moreC. Most/ most D. More/ more

17. It gets ................... Let’s go swimming.

A. hot and hot B. the more hot C. more and more hot D. hotter and hotter

18. Peter usually drives .................. Mary.

A. more fast B. more fast than C. more fast D. faster

19. The problem seems to be ..................

A. more serious B. more serious thanC. more serious as D. more and more serious

20. Peter can not earn .................. his wife.

A. as many money as B. as much money asC. as many money than D. as much money than

21. Prices get ..................

A. high and high B. highest and highestC. more and more high D. higher and higher

22. The more manufacturers advise, .................. they sell.

A. the most products B. the products moreC. the more products D. most products

23. ................. a car is ................. it is

.A. The more expensive/ the comfortabler B. The most expensive/ the most comfortable C. The more expensive/ the more comfortable D. The less expensive/ the more comfortable

24. Of the five students. Mary is .................

A. more intelligent B. the more intelligent C. most intelligent D. the most intelligent

25. Steel is ................ than wood

.A. more heavy B. as heavyC. heavier D. more heavier

26. A super market is …………………… a shopping center

.A. less convenient as B. less convenient thanC. not so convenient than D. the most convenient as

27. Viet Nam becomes …………………… to foreign tourists

.A. more and most attractive B. the more attractiveC. much and more attractive D. more and more attractive

28. This car is …………………… than mine.

A. less expensive B. as expensive C. expensive D. not so expensive

29. Tim’s grades are …………………… than John.

A. worse B. worst C. as bad D. so bad30. The …………………… we start, the sooner we will be back.A. early B. earliest C. earlier D. more earl

1. Christine is much _________ in chemistry than Janet.

A. as good B. as better C. the best D. better

2. I have _________ boss in the world

A. a good B. best C. the better D. the best

3. Riding a car is _______ flying.

A. more dangerous as B. as dangerous than C. as dangerous as D. most dangerous than

4. _________ the police force, the more violent the city.

A. The large B. The larger C. The largest D. The largely

5. Stella drives more _________ Phil.

A. careful as B. carefully as C. careful than D. carefully than

6. She plays the piano _________ as she sings.

A. as beautiful B. as beautifully C. more as beautifully D. the most as beautifully

7. Both Emma and Sylvia work well, but Sylvia is _________ of the two.

A. the more talented B. the most talented C. more talented D. most talented

8. The more organized the community, __________ the neighborhood.

A. more safe B. most safe C. the most safety D. the safer

9. Paris is __________ exciting ___________ London.

A. as – than B. as – as C. more – as D. more – than

10. The more you pull on it, _____________ it gets.

A. the tightest B. the tighter C. the more tightest D. the most tightest.

11. The more we learn, ______________.

A. we become wise B. we become wiser C. wiser we become D. the wiser we become

12. She practices playing the piano _________ than I do.

A. more regularly B. most regularly C. quite regularly D. as regularly

13. Peter is _____ John.

A. younger and more intelligent than B. more young and intelligent than

C. more intelligent and younger than D. the more intelligent and younger than

14. San Diego is ________ town in Southern California.

A. more nice and nice B. the nicer C. the nicest D. nicer and nicer

15. It gets _________ when the winter is coming.

A. cold and cold B. the coldest and coldest C. colder and colder D. more and more cold

16. Robert does not have _______ Peter does.

A. money more than B. as many money as C. more money as D. as much money as

17. As she did so, her parents became _________.

A. the angriest B. the most angry C. the more angry D. angrier and angrier

18. He spent a year in India and loves spicy food. ________ the food is, _______ he likes it.

A. The hotter/ the more and more B. The hotter/ the more

C. The more and more hot D. The hottest / the most

19. I feel ___________ I did yesterday.

A. much more tired than B. many more tired than

C. as many tired as D. as more tired as

20. Mary was _________ of the two sisters.

A. the clever B. as clever as C. the cleverer D. the cleverest

21. French is a _________ language to learn than English is.

A. difficult B. more difficult C. most difficult D. more and more difficult

22. Earning money has always been the thing that pleases him most. _______ he becomes, _______ he is.

A. The more rich/ the more happy B. The richest/ the happiest

C. The richer/ the happier D. Richer and richer/ happier and happier

23. Try this question. It is ___________

A. less difficult B. less and less difficult C. least difficult D. more and more difficult

24. He is not______________ tall as his father.

A. the B. as C. than D. more

25. John’s grades are_____________than his sister’s.

A. higher B. more high C. more higher D. the highest

26. Deana is the_______________ of the three sisters.

A. most short B. shorter C. shortest D. more short

27. She speaks English as_____________ as her friend does.

A. good B. well C. better D. the best

28. Of the three shirts, this one is the_____________ .

A. prettier B. most prettiest C. prettiest D. most pretty

29. The baby’s illness is_______________ than we thought at first.

A. bad B. badder C. worse D. badly

30. Today is the_____________ day of the month.

A. hoter B. hotter C. hotest D. hottest

31. He works more______________ than I.

A. slow B. slowly C. most slowly D. slowest

32. My book is as______________ as yours.

A. good B. well C. better D. the best

33. I love you_____________ than I can say.

A. much B. many C. more D. the most

PART C : READING
I Read the passage and write T/F
      London is the biggest city in Britain. More than 7 million people live and work there. It is one of the most important cities in the world. It is a centre for business and for tourism. London consists of three parts: The City of London, the East End and the West End. In the City of London there are many banks, offices and Stocks Exchange. In the West End we can see many historical places, parks, shops and theatres. It is the world of rich people and money. The East End is the district where working peole live and work.
      The Port of London is also there. You can have a very good time in this city. You can visit different cinemas, theatres and museums. The  "Odeon" is one of the most famous cinemas of the country. The most famous museums are: The British Museum and thr Tate Gallery, There are many shops in London. Oxford Street is London's main shopping centre. People from all over the world buy clothes, shoese, toys and souvenirs there. The street is more than a mile long. The best known departments are Selfridges and John Lewis. The largest park in Lodon is Hyde Park with its Speaker's Comer. Sit on the green grass and try England's favourite food-fish and chips.
.........1 London is the capital and the second biggest city in Britain
.........2 There are more than 7 million people living and working in London
.........3 London is the center of many banks, offices and Stocks Exchange
.........4 Working peole live and work in the West End

Read the passage and then fill in each blank with a suitable word from the box

Cities sights fashion shops visit attractions attractive designers famous tourists

Paris is one of the most (1)…..……… and important cities in the world. It is also one of the Europe’s largest (2)………….. and is known to people all over the world as The City Of Light. The central areas are the most popular with (3)………….. because there are lots of beautiful (4)……….., monuments and museums. The Louvre has a very large number of (5) ……………..works, such as the Venus de Milo and the Mona Lisa. The Eiffel is one of the most popular tourist (6)………………….. in the world

The Industrial Revolution drew more and more people into Paris and now more than 10 million people live there. Everyday, five million people use the city’s underground system. Paris is regarded as one of the best places if you are interested in (7)……………………. Most of the world’s great fashion (8) ………….. have (9)……………. and offices in the city. For many people, the more they (10) ……………….Paris, the more they love it.

 Read the following passage and write T (True) or F (False) for each statement.

London is the biggest city in Britain. More than 7 million people live and work there. It is one of the most important cities in the world. It is a centre for business and for tourism. London consists of three parts: The City of London, the Eas t End and the West End. In the City of London there are many banks, offices and Stocks Exchange. In the West End we can see many historical places, parks, shops and theatres. It is the world of rich people and money. The East End is the district where working people live and work. The Port of London is also there. You can have a very good time in this city. You can visit different cinemas, theatres and museums. The “Odeon” is one of the most famous cinemas of the country. The most famous museums are: The British Museum and the Tate Gallery. There are many shops in London. Oxford Street is London’s main shopping centre. People from all over the world buy clothes shoes, toys and souvenirs there. The street is more than a mile long. The best known departments are Selfridges and John Lewis. The largest park in London is Hyde Park with its Speaker’s Comer. Sit on the green grass and try England’s favourite food — fish and chips. 

1. There are lots of theatres, parks and historical places in the City of London.

2. The Port of London is in the East End of London.

3. Working people live and work in the West End of London.

4. The “Odeon” is a famous museum in London.

5. People go to Oxford Street to buy clothes and souvenirs. 6. People from all over the world don’t buy clothes, shoes, toys and souvenirs in London

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks from 25 to 29. Fill in the appropriate word in question 29

In recent years there have been many articles on air pollution in newspapers and magazines. Scientists all over the world have warned that our atmosphere is (25) ______ more and more contaminated, and that Man, through his carelessness, may run out of pure air to breathe.

Automobiles and industries mainly account (26) _______ air pollution in most cities.  They pour into the air such gases as carbon monoxide, sulfur and nitrogen oxides, (27) _____ are very harmful to humans. (28) ____ still, these gases, a series of chemical changes, turn into toxic acids. They fall down in “acid rains”, raising the acidity in the air, soil and water to dangerous levels and affecting not only tress but also fish and other wildlife. Many industrial countries in Europe and North America have suffered bad effects (29) ______ those “rains”.

Surely, Man faces no more urgent problem than that of saving his own survival. Scientists, social organizations and governments shout sit down together to solve the air pollution problem.

A. with

B. from 

C. about

D. for