Modal Verbs Exercise for ESL Students

Answers

1. Don’t call her in the afternoon. She might be having a nap.
2. 2. ‘I wonder why didn’t reply to my letter?’ ‘She couldn’t have received
   it.’
3. ‘I rang the door bell twice but she didn’t open the door.’ ‘She might have been asleep‘
4. I saw something moving behind the curtain. What can it be?
5. She wasn’t at the meeting yesterday. Perhaps she didn’t know about it.
6. Sam was absent yesterday. Perhaps he was ill.
7. She has been absent for a few days. She might be ill.
8. She is not in her room. Where could she have gone?
9. That cannot be John. He is in Madrid.
10. That must have been a cat. I had heard a meow.
11. I Either could be used here Ireland in summer.
12. We will have/have to wait an hour for the next bus.