Bài tập 1: Chia động từ trong ngoặc theo đúng thời..
1. knew
2. wouldn’t make
3. were preparing
4. were
5. had been working
6. gave
7. were
8. has prepared
9. hadn’t rained
10. are having
11. were, could buy
Bài tập 1: Chia động từ trong ngoặc theo đúng thời..
1. knew
2. wouldn’t make
3. were preparing
4. were
5. had been working
6. gave
7. were
8. has prepared
9. hadn’t rained
10. are having
11. were, could buy