Bài 1: Cho dạng đúng của động từ trong ngoặc ở thời quá khứ hoàn thành.
1. Before hanging out with friends, Jim (do)________________ his homework.
2. Peter told me that he (already finish)________________ reading ‘Harry Porter’.
3. Mary said she (never be)________________ to Paris before.
4. When we came to the movie theater, the film (start)________________ .
5. Where ________________ (Jim / be) before you found him?
6. Peter (travel)________________ to 5 foreign countries on business trips before he retired.
7. My mother (write)________________ me a note before she left for work.
8. I wish I (not attend)________________ that meeting.
9. Jim (read)________________ all his books before he brought a new one yesterday.
10. ________________ (you / clean) your room before you went out?