8. What did you watch on TV last night?
9. When my father was young, he used to be the most handsome boy in the village.
Lưu y: Cầu trúc "S + used to + V" dùng để diễn tả hành đông đã từng làm trong quá khư ma bay giờ không còn làm nữa.
10. Did you go to see the concert yesterday?
11. My performance wasn't really good. I didn't feel happy about it.
12. Jim spent the whole day taking after his brother.
13. I wrote a letter to my foreign friend but he didn't write back. 
14. Were they students of our school?
15. Yesterday, I saw Jim at a bookstore.
EX4. Gạch lỗi sai trong các câu sau rồi sửa lại cho đúng.
1. My friend and I was at the hairdresser's yesterday=>were
2. My sister in law used to had long hair but now she has short hair=> have
3. Did your father worked in a tobacco factory before he retired? => work
4. Why you didn't come to the meeting last week? =>didn't you
5. My best friend and I use to hated each other when we first met. => used to hate
6. Was Anna be successful with her project last week? => Did
7. Yesterday morning I readed several chapters of the book "The little prince". => read
8. Last summer we involved in community service in our neighborhood, so we did go on holiday.=> went

8. did you watch.

9. was/used to

10. Did you go

11. wasn't/ didn't feel

12. spent

13. wrote/didn't write

14. Were they 

15. saw

EX4:

1. was→were

2. had→have

3. worked→work

4. you didn't→didn't you

5. use to hated→used to hate

6. be→∅

7. readed→read

8. did go→went