Chia dạng đúng của động từ trong ngoặc ở thì quá khứ hoàn thành.
1. Yesterday they went home after they (finish) their work.
2. When we came to the stadium, the match (already start)
3. Many people (move) to the new place before the storm occurred.
4. I sat down and rested after they (go)
5. Before he died, he (be) ill for several days.
6. Last night before he watched TV, he (do) the exercise.
7. She went to the department after she (clean) the floor.
8. When I got to the party, they (go) home.
9. By the time the police arrived, the house (be) burned down.
10. By last year, twenty schools in this province (be) built.
Loga
Sinh Học lớp 12
