Complete each sentence with a suitable modal verb.

Choose the correct option.

I [must|might|should|mustn't|might not|shouldn't] have read all night long; I'm so sleepy now!

You [must|might|should|mustn't|might not|shouldn't] have seen Tina; she told me that she talked to you.

You [must|might|should|mustn't|might not|shouldn't] have understood the teacher, that's why you made these mistakes.

You [must|might|should|mustn't|might not|shouldn't] have told me that Chris was going to arrive. I'm not ready for the guests!

I'm totally sure that you [must|might|should|mustn't|might not|shouldn't] have done it! Anyone else, but not you!