
Answer — Exercise 31.3
Unit 31 - Have to and must·English Grammar in Use
Question
In some of these sentences, must is wrong or unnatural. Correct the sentences where necessary.
Answer
- OK / have to
- I have to work
- OK / have to
- He has to work.
- I had to work late yesterday evening.
- OK / have to
- She has had to wear glasses since she was very young.