30. She isn’t used to _______ as a princess.

A. be treated B. being treated C. treating D. used to treat

31. Did you _______ to the circus when you were young.

A. used to go B. was used to go C. use to go D. was used to going

32. That foreigner is used to _______ in a tropical country.

A. live B. to living B. lived D. living

33. When being a boy, my uncle _______ fishing.

A. was used to going B. used to go C. used to going D. is used to going

34. Long ago there _______ a banyan tree here.

A. is used to being B. used to be C. used to being D. is used to be

35. We _______ to each other every month when we were at secondary school.

A. used to write B. usually wrote C. was used to writing D. A and B are right

36. I _______ a packet a day but I stopped two years ago.

A. used to smoke B. use to smoke C. used to smoking D. am used to smoking

37. Ben would travel a lot in his job but now, he doesn't.

A. used to B. use to C. was used to D. is used to

38. I_______ to work but now I take the bus.

A. use to drive B. used to drive C. was used to drive D. was used to driving

39. There _______ a cinema in the town but now there isn't.

A. use to be B. was used to C. is used to D. used to be

40. She _______ really long hair but she's had it all cut off.

A. would have B used to have C. is used to have D. A and B are right.

41. Mr. Poole has lived in Vietnam for many years. He ________the hot climate here.

A. used to B. is used to C. gets used to D. B and C are correct

42. Miss White is a nurse. She ________ working at night.

A. used to B. uses to C. is used to D. has used to

43. Precious metals such as gold, silver ________ for making jewelries.

A. used to B. are used C. is used to D. used to

44. I always read books before bedtime. I ________ reading books at night.

A. am used for B. used to C. am used to D. was used to

45. He never drinks beer. He ________drinking beer.

A. used B. isn’t used to C. used to D. isn’t used for

46. Mary is used to ________ her homework by herself.

A. do B. doing C. to do D. did

47. Tom used to ________ to school by bus. Now he goes by bike.

A. go B. going C. to go D. went

48. I’m from Vietnam. I _________ driving on the right.

A. use to B. used to C. am used to D. get used

49. My uncle _________ policeman when I was young.

A. used to B. used to be C. used to being D. used have been

50. Helen_________ to me very often, but now she phones.

A. used to write B. has written C. wrote D. writes

V. Fill each blank with a word from the box.
accidents ,break ,vehicle, across, did ,rules, it, feels, after, ride
1. What did you do last Sunday?
2. I stayed at home and looked after my younger brother
yesterday.
3. He lives in a small village in the mountains so he never feels worried about traffic jams.
4. You should remember to walk across the streets at the zebra crossings.
5. Does your bike ever break down on the way to school?
6. We must always obey traffic rules for our safety.
7. How far is it from your house to the bus stop?
8. There did not use to be many vehicle on the roads in my
hometown.
9. He used to ride a tricycle when he was three years old.
10. Now there are more traffic accidents than there used to be in this
city.
VI. Put the words/ phrases from the box in each space to complete the following sentences.
zebra crossing railway station speed limit traffic jams
road user means of transport driving license safety helmet
road safety train tickets
1. The government has introduced a new road safety campaign in an attempt to reduce the number of road accidents.
2. A helmet is a hard hat which covers and protects the whole head, worn especially by motorcyclist.
3. We looked on our map to find the way to the railway station.
4. Roadworks have caused traffic jams throughout the city centre.
5. A zebra crossing is a place on a road at which vehicles must stop to allow people to walk across the road.
6. You should know the regulations in order to become a good road user.
7. A driving license is an official document that shows you are able to drive.
8. Slow down because you’re breaking the speed limit.
9. We needed to get to Ha Noi, but we had no means of transport.
10. I have two train tickets available to go to Lao Cai. Would you like to go with me to Sa Pa?
VIII. Make sentences using the words and phrases given.
1. Another problem/ the increase/ the number/ cars/ the road.
--> Another problem is the increase of the number of cars on the road.
2. There/ transport rules/ but/ many people/ not seem/ really interested/ follow/
them.
--> There are many transport rules but many people don't seem really interested in following them.
3. The traffic/ worst/ rush hours/ when/ everyone/ try/ get to work/ get home
quickly.
--> The traffic is worst during rush hours when everyone try to get to work and get home quickly.
4. Some people/ ride/ motorbikes/ the pavements/ rather than/ waiting/ a
traffic jam.
--> Some people ride their motorbikes on the pavements rather than waiting in the traffic jam.
5. The traffic/ a nightmare/ visitors/ Viet Nam/ the first time.
--> The traffic can be a nightmare for visitors to Viet Nam for the first time.
6. More people/ own/ private cars/ it/ make/ the problem/ the traffic jams/
worse.
--> More people have their own private cars and it makes the problem of the traffic jams worse.
7. Pedestrians/ get injured/ hit easily/ when/ they/ walk/ the pavements/ cross
the roads/ such times.
--> Pedestrians can get injured and can be hit easily when they walk on the pavements and cross the roads at such times.
8. Road users/ very impatient/ quite aggressive/ constantly using their horns/
even shouting/ others.
--> Road users become very impatient, quite aggressive, constantly using their horns, even shouting at others.
9. Three or four people/ one motorbike/ a common sight/ particularly/ young
people.
--> Three or four people on one motorbike is a common sight, particularly with young people.
10. Some people/ install/ air horn/ their motorbikes/ this/ really annoying/ other
people/ sometimes/ it cause/ accidents.
--> Some people install air horn on their motorbikes, this is really annoying for other people and sometimes it causes accidents.
IX. Complete the second sentence so that it has a similar meaning to the first.
1. Did you often go to the beach when you lived in Nha Trang?
Did you use to go to the beach when you lived in Nha Trang?
2. Linda doesn’t live with her parents any more.
Linda used to live alone.
3. I don’t have time to collect stamps as when I was in primary school.
I used to have no time to collect stamps as when I was in primary school.
4. He is not a poor man anymore, but he becomes a rich businessman.
He used to become a rich businessman although he is not a poor man anymore.
5. They didn’t often go to the cinema every Sunday last year.
They didn’t use to go to the cinema every Sunday last year.
6. My hair now is much longer than that in the past.
In the past my hair used to be shorter than now.
7. I usually stayed up late to watch football matches last year, but now I don’t.
I used to stayed up late to watch football matches last year, but now I don't.

8. There were some trees in the field, but now there aren’t any.
There used to be more trees in the field than now.

dài quá @-@

ai đồng ý đấm một quả vào chữ đúng nhé

\(\frac{2a+b+c+d}{a}=\frac{a+2b+c+d}{b}=\frac{a+b+2c+d}{c}=d\)

\(\Rightarrow\frac{2a+b+c+d}{a}-1=\frac{a+2b+c+d}{b}-1=\frac{a+b+2c+d}{c}-1=\frac{a+b+c+2d}{d}-1\).

\(\frac{a+b+c+d}{a}=\frac{a+b+c+d}{b}=\frac{a+b+c+d}{c}=\frac{a+b+c+d}{d}\)

Nếu a+b+c+d\(\ne\)0=>a=b=c=d

=>M=a+b/c+d + b+c/d+a + c+d/a+b + a+d/b+c=1+1+1+1=4

Nếu a+b+c+d=0=>a+b=-(c+d)

b+c=-(a+d)

=>M=a+b/c+d + b+c/d+a + c+d/a+b + d+a/b+c =-1+(-1)+(-1)+(-1)=-4

Ở những nước đang phát triển, chất lượng cuộc sống của người dân còn thấp nên tỉ lệ suy dinh dưỡng cao.

tick trước đi rồi nói kết quả sau cho

2. They are going to annuonce their ( dicide ) decision tommorow.

3. We had a happy (child)children together.

4. He had an accident last day bacause he drove carelessly ( care )

5. The girl make-up to ( beautiful )beautifully themselves.

6. Eating too much is unhealthy( health).

7. This book is (interest)interedting.I am ( interest )interested in it .

8. We will have a ( success) successful examination

b,

-Nhóm máu O có thể truyền cho nhóm máu AB vì nhóm máu O chỉ có kháng thể, ko có kháng nguyên nên khi truyền cho nhóm máu AB kháng thể ko đủ để gây kích thích cho cơ thể nên ko kết dính hồng cầu người nhận.
-Nhóm máu AB ko thể truyền cho nhóm máu O vì trong nhóm máu AB chỉ có kháng nguyên, ko có kháng thể nên khi truyền cho nhóm máu O sẽ gây kích thích cơ thể, kết dính hồng cầu.

c,

Vì:

+ Do không khí đồng bằng có áp lực cao cho nên khả năng kết hợp của oxi với hemoglobin trong hồng cầu tăng.

+ Số lượng hồng cầu giảm để đảm bảo nhu cầu oxi cho hoạt động của con người .

VII. Complete the following sentences with the correct form of the words in brackets.

1. She’s (wonder) wonderfully fit for her age.

2. It is (question) questionable whether this is a good way of solving the problem.

3. There have been strange (happen) happening here lately.

4. The results of the research are (summary) summarized at the end of the chapter.

5. Do you have any (suggest) suggestions ?

6. Things seem to have (quiet) quietly down a bit this afternoon.

7. Her latest CD is a (conpile) compilation of all her best singles.

8. With a few (honour) honourable exceptions, the staff were found to be incompetent.

9. The public have responded (magnificent) magnificently to our appeal.

10. The room still has many of its (origin) original features.