Writing:

1. "I'm cleaning my room now" said Hoa.

=> Hoa said she was cleaning her room then.

2. I can't do this exercise.

=> I wish I could do this exercise.

3. Nga started to live in Hanoi when she was ten.

=> Nga has lived in Hanoi since she was ten.

4. Lan bought a new bike yesterday.

=> A new bike was bought by Lan yesterday.

\(ab-ac+bc-c^2=-1\Leftrightarrow a\left(b-c\right)+c\left(b-c\right)=-1\Leftrightarrow\left(a+c\right)\left(b-c\right)=-1\)=> Một trong hai thừa số có tổng là 1, số còn lại có tổng là -1 => (a+c) và (b-c) đối nhau. Vì vậy:

\(b-c=-\left(a+c\right)\Rightarrow b-c=-a-c\Rightarrow b=-a\)hay a+ b = 0 (đpcm)

Đúng thì tick nhaaa

I)

1. I love this city! The sights of it make a deep impression on me. (impress)

2. Miss Hoa is very religious. She goes to church every morning. (religion)

3. My pen-pal and I have corresponded for over 2 years and we really enjoy our friendship. (friend)

4. The official religion of Malaysia is Islam. (office)

5. Like Vietnam, Malaysia is a tropical country. (tropie)

6. It's very kind of you to help us. Thanks a lot.

7. The hospital building is divided into four sections.

8. Did he use to live in the country when he was young ? (used to)

9. Tam wishes his father were here now. (be)

10. He stayed up very late last night, didn't he ?

She bought her son a toy car. It can run on water. ( which )

=> She bought her son a toy car which can run on water.

Chuyển câu chủ động thành câu bị động:

1. People grow rice in Asia.

=> Rice is grown in Asia.

2. They don't allow the dogs to come in this Asia.

=> The dogs aren't allowed to come in this Asia.

3. People speak English all over the world.

=> English is spoken all over the world.

The black dress is more expensive than the white one​.

=> The white dress is cheaper than the black one.

Part I.

1. Bao, Khai and Song are close friends although each of them ………. a different character.

A. have B. has C. are having D. is having

2. Would you mind if I opened all the windows? - …………………..

A. Yes, let’s B. No problem C. Please do D. That’s a good idea

3. Being a student, you ……….. finish your homework before going to school.

A. can B. must C. should D. would

4. After her mother died and his mother married again, Little Pea had to do ………… all day.

A. homework B. exercises C. chores D. cook

5. Where is Tom? – He’s out at the moment, but he said she ......................... back soon.

A. is B. will be C. would be D. came

6. Long didn’t ………………… travel by bus. He usually traveled by motorbike.

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

7. The weather this year is different ………. it was last year. It is much drier and hotter.

A. to B. with C. for D. from

8. How far is it from Ha Tinh to Vinh? – It ………… about an hour.

A. gives B. takes C. goes D. gets

9. –“ Do you mind giving me that pen, please?” – “.........................”

A. Here you are B. No, it isn’t C. It doesn’t matter D. Yes, please

10. What are you doing? – I am reading a book …………. Jack London

A. of B. from C. by D. with

11. It was raining, .......................we cancelled the trip to Hoi An for the next day.

A. although B. so C. because D. but

12. Reading many books helps you …………………. your knowledge.

A. achieve B. get C. gain D. widen

13. My teacher advised us ………………. part in the Mid-Fall festival.

A. take B. took C. taking D. to take

14. Japan is a(n)............................. country.

A. car exporting B. exporting- car C. car- exporting D. cars- export

15. Not only they but also my brother ……..… several novel about the second world war this week.

A. read B. reads C. have read D. has read

16. “What ………… when you saw the man?” the police officer asked.

A. have you done. B. were you doing. C. are you doing. D. do you do.

17. Don’t …………… the victim with blankets or coats.

A. overheat B. hot C. heat D. cool

18. I was late for school this morning because my alarm clock didn’t go ……………….

A. on B. up C. off D. out

19. …………………..he sang in my birthday party!

A. How beautiful. B. How beautifully. C. What beautiful D. What beautifully.

20. This villa ……………… in the eighteenth century by a wealthy trader belongs to Mr. Long..

A building B. built. C. was built. D. build

PART I.

1- The last time I saw her was in 2005.( I haven't )

=> I haven't seen her since 2005.

2- He is writing a book on biology.( A book on biology )

=> A book on biology is being written.

3- Going swimming in the summer is interesting.(It)

=> It's interesting to go swimming in the summer.

4- He was punished by his mother ( His mother)

=> His mother punished him.

5-“Don’t play video games too much, Minh"Mr Ha said.( Mr Ha asked )

=> Mr. Ha asked Minh not to play video games too much.

6. We found it difficult to follow these directions. (It was)

=> It was difficult to follow these directions.

7. She arrived in Ho Chi Minh city three weeks ago. (She has)

=> She has arrived in Ho Chi Minh city for three weeks.

8. Mary is the most graceful girl at school. (No girl.)

=> No girl at school is more graceful than Mary.

9. Don’t tell anyone about my secret. (I would)

=> I would rather you didn't tell anyone about my secret.

10. Taking part in social activities in her free time is her pleasure. (She is)

=> She is interested in taking part in social activities in her free time.

V.

1- Bobby started school at the age of five.

2- I am very keen on music.

3- I’m looking forward to seeing in June.

4- They are traveling to the airport with a bus.

5. You have to look after your little sister when we are out.