Complete the sentences with the correct form of have to, must, should or would.Mum: You look really tired Pete. You (1) go to bed early tonight. Pete: But l can't. I need to revise for an exam. Mum: (2) revise this evening? Pete: Yes! l've got the exam tomorrow. Mum: If you'd done some revision before, you (3) Pete: I know, Mum, You (4) have to do it tonight! remind me! Mum: Look, do some revision but you (5) stay up late, otherwise l'll be cross. Staying up won't help you tomorrow.​

Mum: You look really tired Pete. You (1) should go to bed early tonight.

Explanation: "Should" is used to give advice or make a suggestion. In this case, the mother is advising Pete to go to bed early because he looks tired.

Pete: But I can't. I need to revise for an exam.

Explanation: Pete is stating that he cannot go to bed early because he needs to study for an exam.

Mum: (2) Must you revise this evening?

Explanation: "Must" is used to express a strong obligation or necessity. The mother is asking if it is necessary for Pete to study that evening.

Pete: Yes! I've got the exam tomorrow.

Explanation: Pete confirms that he indeed has an exam the next day.

Mum: If you'd done some revision before, you (3) wouldn't have to do it tonight!

Explanation: The mother is expressing the idea that if Pete had done some revision earlier, he wouldn't be in a situation where he needs to study so late at night. "Wouldn't have to" is used to talk about a hypothetical situation in the past.

Pete: I know, Mum. You (4) should remind me!

Explanation: Pete acknowledges that he should have done some earlier revision and suggests that his mother should remind him in the future. "Should" is used to express a suggestion or recommendation.

Mum: Look, do some revision but you (5) shouldn't stay up late, otherwise I'll be cross. Staying up won't help you tomorrow.

Explanation: The mother advises Pete to do some revision but suggests that he shouldn't stay up too late because it won't be beneficial for his exam the next day. "Shouldn't" is used to express a recommendation or advice to avoid a certain action.