Ex 1: Chuyển sang câu bị động:
1. People spend a lot of money on advertising every day.
2. Marry is cutting the cake with a sharp knife.
3. The police haven’t found the murderer yet.
4. They sold one of her paintings at $1,000.
5. Tom was writing two poems.
6. After class, one of the students always erases the chalk board.
7. She often takes her dog for a walk.
8. Nobody has ever treated me with such kindness.
9.My father bought this house two years ago
10.We have done these exercises carefully.
Ex 2: Chia động từ về thì thích hợp :
1.Everyday, my sister usually (clean) ____________________ the floor.
2.When he came, I (watch) ________________ TV.
3. Jane and I (finish) _______________ school in 1987.
4.I’m busy at the moment. I (work)____________________ on the computer.
5. When I was a child, I (play) _________________ the violin.
6.He (play) ___________________ for the national team so far.
7. We often (have) ______________ bread for breakfast.
8. We (not finish) __________________ homework yet.
9. John (live) __________________in the city for 20 years ago.
10. We (know) _____________________ each other since we were small.
11. After they (have) _______ their breakfast, they went shopping yesterday.
12. They (go) ______________ to the supermarket yesterday.