Task 1. Complete the sentences with the correct form of must, have to, or should
You ……………………………………… tell anybody. It’s a secret. It’s Sunday so I ……………………………………… go to work. That skirt is perfect for you. I think you ……………………………………… buy it. We ……………………………………… wear a uniform at our school. I hate it. I ……………………………………… remember to give you back the money I borrowed. You ……………………………………… eat too much white bread. It’s not very good for you. Our car broke down on holiday so we ……………………………………… rent a car for a week.
Task 2. Circle the right form
I can’t find the receipt. I should have / must have thrown it away.
You can’t see / can’t have seen Gerry yesterday. He was in bed with flu.
John played really badly yesterday. He might not be / might not have been feeling well.
I don’t like those jeans. You should have / must have bought the other ones.
What a lovely girl your daughter is. You must be / must have been very proud of her.
A: I can’t find my car keys. They’re not in my bag.
B: Well, you might have not / can’t have / should have not left them at the restaurant. I
saw you take them.
Task 3. Complete with the correct form of can, could, or be able to
1) If you buy a car, you …………..…… drive to work next year. 2) I ………………… talk until I was three years old. 3) I’ve been looking for a flat for ages but I haven’t …………………. find what I want. 4) He is very fit for his age. He ……………………………….. (run) really fast. 5) I’d like ……………………………….. (work) with you one day. 6) I ……………………………….. (spend) all morning in bed, but I feel like working. 7) I think you should go in the spring. It ……………………………….. (be) very crowded there in the summer (it usually is crowded). 8) ……………………………….. (speak) another language fluently is a great advantage when you’re looking for a job. 9) I’m sure he ……………………………….. (manage) perfectly well on his own if he had to.