Cover of the textbook English Grammar in Use

The key answer of exercise 29.4

The key to exercise solutions in chapter Unit 29 - May and might 1 for the textbook English Grammar in Use with authors Raymond Murphy from Cambridge University Press


Complete the sentences using might not have … / couldn’t have … .


  1. She couldn’t have got it.
  2. She might not have known about it.
  3. might not have received it / might not have got it
  4. couldn't have been an accident
  5. couldn't have tried
  6. might not have been American