Cover of the textbook English Grammar in Use

The key answer of exercise 31.3

The key to exercise solutions in chapter Unit 31 - have to and must for the textbook English Grammar in Use with authors Raymond Murphy from Cambridge University Press

Question

In some of these sentences, must is wrong or unnatural. Correct the sentences where necessary.

Answer

  1. OK
  2. I have to start work
  3. OK
  4. I had to walk home.
  5. OK
  6. He has to study
  7. We have to go
  8. She has had to wear glasses since ...