1.We are visiting Ha Long . Ha Long is in the north of Vietnam.

=> We are visiting Ha Long, which is in the north of Vietnam.

2. My father is a doctor . He has gone to abroad .

=> My father, who has gone to abroad, is a doctor.

3. Ms Kim Anh will be our History teacher next semester . You talked with her yesterday . => Ms Kim Anh, whom you talked with yesterday, will be our History teacher next semester.

4. The watch belongs to Lam . It is in the bathroom . => The watch which is in the bathroom belongs to Lam.

5. Do you know the new student ? I can’t remember his name .

=> Do you know the new student whose name I can't remember?

6. Mary is a bit deaf . She didn’t hear the phone.

=> Mary, who didn't hear the phone, is a bit deaf.

7. We’ll meet Peter tomorrow . He has 2 brothers and one sister .

=> Tomorrow we'll meet Peter, who has 2 brothers and one sister.

8. We are talking to Viet Nam . Viet Nam has a population of 87 million people.

=> We are talking to Vietnam, which has a population of 87 million people.

9. We are talking to Viet Nam . Its population is 87 million people .

=> We are talking to Vietnam, the population of which is 87 million people.

10. I should phone the man . I borrowed his car yesterday .

=> I should phone the man whose car I borrowed yesterday.

11. She can’t speak English . It is a disadvantage .

=> She can't speak English, which is a disadvantage.

12. I’m staying with Henry . His father works in a bank

=> I'm staying with Henry, whose father works in a bank.

13. Do you remember Mrs Lan ? She taught us History.

=> Do you remember Mrs Lan who taught us History?

14. The museum was built in 1805 . Our class visited it last weekend.

=> The museum which our class visited last weekend was built in 1805.

15. The man works in the hospital . I told you about him .

=> The man whom I told you about works in the hospital.

16. Do you like the person ? The person sits next to you .

=> Do you like the person who sits next to you?

17. The house costs a lot of money . My father bought it last year .

=> The house which my father bought last year costs a lot of money.

18. We are visiting the children . Their parents died in the storm .

=> We are visiting the children whose parents died in the storm.

19. My sister is rather childish . She was trained to be a sewer .

=> My sister, who was trained to be a sewer, is rather childish.

20. Colin told me about his new job . He enjoys it very much .

=> Colin told me about his new job, which he enjoys very much.

21 . We know a lot of people . They live in London .

=> We know a lot of people who live in London.

22. We know her grandparents . They live in London.

=> We know her grandparents who live in London.

23. We met some people . Their car had broken down .

=> We met some people whose car had broken down.

24. We stayed at the Cau Vong hotel . Nam recommended it to us .

=> we stayed at the Cau Vong hotel, which Nam recommended to us.

25. Jane works for a company . It makes shoes .

=> Jane works for a company which makes shoes.

26. She told me her address . I wrote down it on a piece of paper .

=> She told me her address which I wrote down on a piece of paper.

27. There are some words . They are very difficult to translate.

=> There are some words which are very difficult to translate.

28. John is one of my closest friends . I have known him for a very long time .

=> John, whom I have known for a very long time, is one of my friends.

29. A pacifist is a person . He believes that all wars are wrong .

=> A pacifist is a person who believes that all wars are wrong.

29. What is the name of the man ? You borrowed his car .

=> What is the name of the man whose car you borrowed?

1 we are visiting Ha Long, which is in the north of Vietnam

2 My father,who is a doctor has gone to abroad

3 Ms Kim Anh, who talked with her yesterday will be our History teacher next semester

4 the watch, which belongs to Lam is in the bathroom

5 Do you know the new student whose name I can't remember 

6 Mary, who is a bit deaf didn't hear the phone

7 we'll meet Peter, who has brother and one sister

8 we are talking to Vietnam where has population of milion people

9 I should phone the man Whose car I borrowed yesterday

10 she can't speak English, which is a disadvantage

11 I'm staying with Henry whose father___________

12 do you remember Mrs Lan who taught_____________

13 the museum which was big and historic our______________

14 the man who works in the hospital I told you about

15 do you like the person who sits_________________

17 we are visiting the children whose parents________________

16 the house which cost a lot of money_______________ bỏ it

18 My sister who is rather childish was__________________

19Colin told me about his new job which he_______________ bỏ it

20We know a lot of people who live_____________

21 we know her grandparents who live____________________

22 we meet some people whose car had________

23 we stayed at Cau Vong hotel which________________ bỏ it

24Janes works for a company which make_______________

25 she told me her adress which___________________ bỏ it nhé

26 there are some words which are_____________________

27 jonh who is one of my closet friends_________________

28 a pacifist is a person who belives__________________

29 what is the name of the man whose car you borrowed

30 the instructions which are very important are given on the front page

Cho mik xin ctrl hay nhất ạ.Thanks^_^