Past Modal Verbs of Deduction — Exercise 1

1The lights were off and nobody answered the door. They — choose —must havemight havecan have left already.

2He looks exhausted this morning. He — choose —must havemight havecan have worked late last night.

3She didn’t reply to my message. She — choose —can’t havemay havemust have seen it yet.

4The car won’t start. He — choose —might havecan havemust have forgotten to charge the battery.

5She passed the exam easily. She — choose —might havemust havecan have studied very hard.

6He didn’t hear the alarm. He — choose —must havemight havecan have been asleep.

7This painting is missing. Someone — choose —might havecan havemust have taken it.

8She can’t find her keys anywhere. She — choose —may havemust havecan have left them at the office.

9He knew all the answers without hesitation. He — choose —might havecan havemust have prepared well.

10The road was wet this morning. It — choose —can havemight havemust have rained during the night.