Вопрос:

Use each modal verb (can, may, must, need, have to) in the proper form twice.

Ответ:

Modal Verbs Practice

  1. You can knock at the door. I have got the key.
  2. You must see the film. It is really interesting.
  3. May I come in? - Please, do.
  4. When I was a child I could read and write.
  5. The buses were all full. I had to go on foot.
  6. Students must never use dictionaries while doing the test.
  7. I have lost my keys. I can't enter my flat.
  8. You must put on a coat. It is going to be warm.
  9. When her parents were away, she had to cook all her meals herself.
  10. May I come in? - I'm afraid not.