Question

I. Rewrite the following sentences and add the available modal verbs to the appropriate position.

1. If you go swimming in the sea, you wear a life jacket. (ought to)

2. I will tell you my secret, but you tell anyone. (mustn't)

3. You spend too much time playing computer games. You stop that. (must)

4. Phuong loves chocolate, but she eat too much, or she will gain weight. (oughtn't to)

5. We wear helmets when we ride a motorbike. (have to)

6. I book the tickets in advance. (don't have to)

7. Alia, you say rude words like that. (mustn't)

8. We play table tennis. We can play chess instead. (don't have to)

9. Children put their hands into sockets. That is very dangerous. (mustn't)

10. Doctors sometimes work at the weekends and on national holidays. (have to)

Answer 1

Tham khảo

1. You ought to wear a life jacket if you go swimming in the sea.

2. I will tell you my secret, but you mustn’t tell anyone.

3. You spend too much time on playing computergames , you must sop it.

4. Phuong oughtn’t to eat too much chocolate, or she will gain overweight.

5. We have to wear helmets when she ride a motorbike.

6. I don’t have to book the tickets advance.

7. Alia musnt’t say rude words like that

8. We don’t have to play table tennis, we can play chess instead.

9. Children musn’t put their hands into sockets, ( because) that is very dangerous.

10. Doctors sometimes have to work at the weekends and on national holidays.