Answer Key
Grammar Quiz 22 – Modal Verbs 2
Fill in the missing modal verbs and expressions.
- You [should have] told him the truth when he asked you about us!
- Jim wasn't [able] to complete the homework. It was too difficult.
- Peter [didn't have, did not have, didn't need, did not need] to work so hard for the test, because it was very easy.
- It [can't have, cannot have, couldn't have, could not have] happened. I don't believe it!
- We [had] to fire him. He couldn't work with standard PC applications.
- At first, women and children were [allowed] to leave the bank. Later the terrorists also released the elderly.
- That was so crazy, you fool! You [could have] killed us!
- Emma [couldn't, could not] sleep last night, so she watched TV until she fell asleep.
- It [must have] been John! Nobody else would have been able to do it so well!
- Why are they so late? - - - I have no idea. They [might, may] have missed the 8:15 bus.