\(\frac{bc}{a}+\frac{ca}{b}+\frac{ab}{c}\ge a+b+c\) với a,b,c>0

\(\left(1+a\right)\left(1+b\right)\left(1+c\right)\ge\left(1+\sqrt[3]{abc}\right)^3\)

21. If she …………… the lottery last year, She ………… rich now.
A. have won / would be
B. had won / would be
C.won / would be
D. wins / will be

22. If I …………… the homework last night, I …………… bonus today.
A. had done / would get
B. had done / would have got
C. done / would get
D. does / will get
23. If we had played this game yesterday, we …………… a lot of money now.
A. will have
B. may have
C. would have had
D. would have
24. If it ……………… last night, it would be cold today.
A. had rained
B. rained
C. have rained
D. was raining
25. If she …………… to me, she ……………… in trouble right now.
A. had listened / would be
B. had listened / would have be
C. had listened / would not be
D. A & B
26. If it had rained one hour ago, the streets ………… wet now.
A. would have be
B. will be
C. be
D. would be
27. If I ………………. to the beach yesterday, I would be tired today.
A. have gone
B. goes
C. had gone
D. A & B
28. If they had gone to school yesterday, they ……… .. to the museum now
A. would go
B. will go
C. could go
D. A&C
29. If he had done exercise last night, he ……… soccer right now.
A. will play
B. can play
C. plays
D. could play.
30. If Nina had not gone out last week, she ……………… die now.
A. will
B. would
C. could
D. B&C

1. I would have visited you before if there _____ quite a lot of people in your
house.
A. hasn't
B. hasn't been
C. wouldn't be
D. wasn't
2. If you had caught the bus, you _____ late for work.
A. wouldn't have been
B. would have been
C. wouldn't be
D. would be
3. If I _____, I would express my feelings.
A. were asked
B. would ask
C. had been asked
D. asked
4. If _____ as I told her, she would have succeeded.
A. she has done
B. she had done
C. she does
D. she did
5. Will you be angry if I _____ your pocket dictionary?
A. stole
B. have stolen
C. were to steal
D. steal
6. You made a mistake by telling her a lie. It _____ better if you _____ to her.
A. would have been / hasn't lied
B. would be / didn't lie
C. will be / don't lie
D. would be / hasn't lied
7. John would be taking a great risk if he _____ his money in that business.
A. would invest
B. Conc
C. had involved
D. invests
8. She wouldn't have given them all that money if we _____ her to.
A. wouldn't advise
B. won't advise
C. hadn't advised
D. didn't advise
9. If the tree hasn't been so high, he _____ it up to take his kite down.
A. could have climbed
B. climb
C. is climbing
D. climbed
10. If the wall weren't so high, he _____ it up to take his ball down.
A. climbed
B. could climb
C. is climbing
D. climb
11. If I _____ her phone number, I _____ her last night
A. had known / could have phoned

B. knew / would have phoned
C. know / can phone
D. knew / could phone
12. If he ______ the truth, the police wouldn't arrest him.
A. tells
B. told
C. had told
D. would tell
13. If you press that button what _____?
A. would happen
B. would have happened
C. will happen
D. happen
14. She says if she _____ that the traffic lights were red she _____.
A. had realized / would stop
B. realized / could have stopped
C. has realized / stopped
D. had realized / would have stopped
15. I am very thin. I think, if I _____ smoking, I might get fat.
A. stop
B. had stopped
C. will stop
D. stopped
16. If I _____ that yesterday, I _____ them.
A. had discovered / would inform
B. had discovered / would have informed \
C. had discovered / could inform
D. discovered / can inform
17. If you _______ to the course regularly, they ________ a certificate last
year.
A. go / gave
B. go / give
C. had gone / would have given
D. went / would give
18. I think he is not at home. If he _____ in, he ______ the phone.
A. was / answered
B. were / would answer
C. were / would have answered
D. had been / would have answered
19. If I ______ in London now, I could visit British Museum.
A. were
B. had been
C. have been
D. would be
20. If Columbus _______ money from Queen Isabella, he _______ across the
Atlantic.
A. do not receive / could not sail
B. had not received / might not have sailed
C. did not receive / might not have sailed
D. would not receive / might not sail
21. If she …………… the lottery last year, She ………… rich now.
A. have won / would be
B. had won / would be
C.won / would be
D. wins / will be

22. If I …………… the homework last night, I …………… bonus today.
A. had done / would get
B. had done / would have got
C. done / would get
D. does / will get
23. If we had played this game yesterday, we …………… a lot of money now.
A. will have
B. may have
C. would have had
D. would have
24. If it ……………… last night, it would be cold today.
A. had rained
B. rained
C. have rained
D. was raining
25. If she …………… to me, she ……………… in trouble right now.
A. had listened / would be
B. had listened / would have be
C. had listened / would not be
D. A & B
26. If it had rained one hour ago, the streets ………… wet now.
A. would have be
B. will be
C. be
D. would be
27. If I ………………. to the beach yesterday, I would be tired today.
A. have gone
B. goes
C. had gone
D. A & B
28. If they had gone to school yesterday, they ……… .. to the museum now
A. would go
B. will go
C. could go
D. A&C
29. If he had done exercise last night, he ……… soccer right now.
A. will play
B. can play
C. plays
D. could play.
30. If Nina had not gone out last week, she ……………… die now.
A. will
B. would
C. could
D. B&C

V​​ WRITING
Choose the best option to complete the second​​ sentence so that it has a similar meaning to the first.
61. Climbing without a safety rope is forbidden.
You ________________________________________________

a. aren't allowed to climb without a safety rope.
b. don't .permit to climb without a safety rope.
c. aren't forbidden climbing without a safety​​ rope.
d. had better climb with a safety rope.
62. Nigel hasn't got satellite TV, so he can't watch the game.
If ________________________________________________
a. Nigel has satellite-TV, he can watch the game.
b. Nigel has got satellite TV, he would able to watch the game.
c. Nigel had satellite TV, he could watch the game.
d. Nigel would have satellite TV, he could watch the game.
63. Walking​​ home alone is Tot a good idea.
You​​ ________________________________________________
a. can't walk home alone. b. mustn't walk​​ home alone.
c. don't have to walk home alone. d. shouldn't walk home alone.
64.'Did someone ring you an hour ago?' Martin said to Susan.
​​ Martin asked Susan​​ _____________________________________
a. whether anyone rang her an hour ago.
b. if someone had ru ng her an hour before.
c. whether someone rang him an hour ago.
d. if anyone had rung her an hour before.
65. Throw a stone into water and it sinks.
​​ If​​ ________________________________________________
a. you threw a stone into water, it would sink.
b. ​​ a stone is thrown into water, it may sink.
c. you will throw a stone into water, it sinks.
d. you throw a stone into water, it sinks.

B. Read the passage carefully, then choose the correct answer.
Man is a land animal, but he​​ closely tied to the sea. Throughout history the sea has served the needs of man.
The sea provided man with food and convenient way to travel to many parts of the world. Today, nearly two
thirds of the world's population live within 80 kilometers of the sea coast.
In the modern technological world, the sea offers many resources to help mankind survive. Resources on land
are beginning to be used up. The sea, however, still can be hoped to supply many of man's needs.
The list of riches of the sea yet to be​​ developed by man's technology is impressive. Oil and gas exploration
have been carried out for nearly 30 years. Valuable amounts of mineral exist on the ocean floor ready to be
mined.
Fish farming- promises to be a good way to produce large quantities of food. The culture of fish and shellfish
is an ancient skill practiced in the past mainly by the​​ Oriental people.
Besides oil and gas, the sea may offer new source of energy. Experts believe that the warm temperature of the
ocean can be used in a way similar​​ to the steam in a steamship. Ocean currents and waves offer possible use
as a source of energy. Technology is enabling man to explore ever more deeply under the sea. The
development of strong, new materials has made this possible.
The technology to harvest the sea continues to improve. Experts believe that by the year 2020 the problems
that prevent us from exploiting fully the food, minerals and energy sources of the sea will be largely solved.
​​ 56. The best title for this passage is ……………
a. Sea Harvest b. Sea Food
c. Man and the Sea d. Technolo gy for Exploiting the Sea
57 The major things that the sea offers man are ………………..
a. fish and oil.
b. minerals and oil
c. warm temperature and ocean currents.
d. the food energy sources, and minerals.
58.​​ The sea serves the needs of man because ……………….
a. it provide man with food. b. it supplies man with minerals.
c. it offers oil to man d. all are correct
59. The words​​ 'Oriental people​​ in paragraph 4 probably mean…………………..​​
a. the people in Asia b.​​ African people
c. European people d. American people
60. We can conclude from this passage that ……………..​​
a. the sea resources have largely been used up.
b. the sea has not yet been fully exploited.
c. the problem that prevent us from using the food, minerals and energy sources of the sea have already been
solved.
d. by the year 2020 the technology will be good enough to exploit all the sea resources.

IV. READING COMPREHENSION
A. Choose the correct option a, b, c or d to complete this,​​ passage.

Dolphins are known ​​ as cesareans or marine (1)................they breathe air, they are warm-blood, and they
bear live young ones​​ called (2) ................
​​ The size of dolphins very greatly. The smallest dolphins is just about 50 kg in weight and 1.2 meters in
length (3) ................. ​​ the largest one can weigh up to 8.200 kg and is 10 meters long.
Dolphins are sociable creatures. They swim together in group known as (4) ..............They show great ability
in the water and you can often (5)........................ them playing (6).............. ships. Dolphins are interested in
humans and often ​​ rescue people in the sea (7)...............are in danger. They are intelligent creatures and

make sounds to n (8)................with each other. Scientists have studied dolphins (9) ................many years and
are now looking into the possibility of dolphins​​ (10)............able to​​ carry out tasks under the sea.
46. a. fish​​ b. creatures c. mammals d. life
47. ​​ a. babiesb. calves c. young d. diets
48. a. whenb. as​​ c. while d. since
49. a. currentsb. flocks c. herds d. schools​​
50. a. look downb. come across c. run after d. go by
51. a. aroundb. on c. ind. next
52. a. whichb. they c. when d. who​​
53. a. talkb. contact c. communicate​​ d. connect
54. a. inb. since c. for d. during
55. a. beb. being c. are d. that are

B. Identify the one underlined word or phrase - A, B, C or D - that must be changed for the​​ sentence
to be correct.
36. Jack will win​​ the​​ election​​ if​​ lie​​ campaigned​​ harder.
A B C D
37. We're used to​​ think​​ that there​​ was​​ no life in the ocean​​ depths.​​
A ​​ B C D
38. A​​ large portion of the​​ world's​​ water supply​​ have been​​ contaminated by
factory​​ waste,​​ ships and oil​​ spills.
A B C D
39. Were Mr Morgan​​ still head teacher, he​​ would​​ not permit​​ such​​ bad​​ behave.​​
A B C D
40. You​​ can't​​ go​​ into​​ the reception​​ if​​ you've got​​ a ticket.
A B C D
41. The match​​ was​​ cancelled​​ due to​​ the​​ weather​​ was bad.
A B C D
42.​​ Despite​​ his​​ disability, he tried​​ leading​​ as normal​​ a life​​ as possible.​​
A B C D
43. Could​​ you tell me when​​ does​​ the next train​​ leaves​​ and where​​ to buy​​ tickets?​​
A B C D
44. I​​ think​​ you​​ shouldn't​​ do if it's​​ the right​​ thing​​ to do.
A B C D
45. Unless​​ we​​ work harder, we​​ will​​ finish​​ on​​ time.
A B​​ C​​ D

A.​​ Choose the word or phrase - a, b, c, or d - that best completes the sentence.
21. ​​ What would Tom do if he ......................... the truth?
a. would know b. has know c. knows d. knew
22. Jim wanted to know................call and tell him where to meet you.
a. you could b. whether you can c. if you could d. when could you
23. Could you​​ talk........................? I'm trying to work.
a. more quietly b. quieter than c. more quiet d. quiet
24. Whales and sharks are carnivores ....................... means they eat meat.
a. this b. that c. it d. which
25. Would you mind................. me tomorrow?​​
a. call b. calling c. to call d. if you call
26. You....................Mark. You know it's a secret.
a. should tell b. shouldn't tell c. couldn't tell​​ ​​ d. might tell
27. Owls have a strong beak and sharp talons.................mice and other small prey:

a. which used to catch b. used for catching
c. their use is to catch d. they are used for catching
28. We wondered why....................... a tip.
a. to leave b. should we leave​​ c. we should leave d. don't we leave
29. If someone .................... into the store, smile and say, 'May I help you?'
a. comes b. came c. will come d. would come
30. ...............you, I would think twice about that decision. It could be a bad move.
a. f I am b. Should I be c. Were I d. If I had been
31. 'Would you like some cake?';​​ 'No, thanks. If I​​ ​​ cake, I....................fat.'
a. ate/ will get b. ate/ would get
c. mould eat/ could get d. am eating/ will get
32.' What are you doing later this afternoon?' ' Oh, ................. the game finishes, go home, I expect.'
a. if b. in c asec. unless d. when
33. She's been studying​​ hard for the exam, so she.................to pass.
a. should b. ought​​ c. had better d. must
34. If I weren't working for an accounting firm, I​​ ​​ in a bank.
a. work b. will work c. have worked​​ d. would be working
35. 'Why are you so late?' 'I .................... my aunt to the airport. The traffic was terrible
a. could take b. must have taken ​​ c. should take d. had to take