Answer Key
Grammar Quiz 21 – Modal Verbs 1
Choose the correct expressions.
- I don't believe him. He [couldn't have taken] a train yesterday morning. There are no trains on Sundays until 4 pm!
- Where is Paula today? - - - I don't know. She [may be] sick.
- They [didn't have to] go there again, as it was not compulsory.
- I can't find the book anywhere. I [must have left] it at the café.
- You [mustn't] do that! It is very impolite!
- Dick doesn't seem to know about it. He [may not have] heard your instructions.
- Were you [allowed to] access the database without the manager's consent?
- [Were you able] to translate the article? I think it was rather hard!
- You [shouldn't have] lied to her! That was not very clever of you.
- Jane [could] swim when she was four.