1. He (must have – can't have – didn't have – can have) missed his train. He's usually late.
2. His watch (must have – might have – could have – can't have) cost a lot of money. It's made of plastic.
3. It (can't have – will have – must have – didn't have) been very windy during the night. There are branches all over the ground.
4. Tunnelling under the Nile (must have – may have – can't have – might have) been easy. I'm sure it was difficult.
5. My father (didn't have – won't have – shall have – must have) walked to work this morning. His car is still in the garage.
6. He can't walk. He (must – mustn't – shouldn't – won't) be ill.
7. He spends so much money. He (can't – shouldn't – must – won't) be rich.
8. You (can't have – must have – should have – will have) finished that book already. You bought it only yesterday and it is very long.
9. A: I don't know where my school bag is, Mum? B: It's not here. You (mustn't – can't – might – won't) have left it on the train.
10. A: Look, Hesham's keys are on the table. B: He (must have - can't have – might have – may have) seen them when he left this morning.
11. A: I rang you this morning, but you didn't answer. B: Sorry, I (can't – might not – may not – must) have been asleep.
12. A: He's only been in the laboratory for ten minutes. B: Surely he (must – can't – might – may) have finished the experiment already.
13. A: Ali fell off his bike this morning. Do you know if he's OK? B: His mother says he (might – will – can – didn't) have broken his arm.
14. He (can't have – mustn't have – must have – should have) been injured. There was blood on his face.
15. The streets are wet. It (must rain – can't rain – must have rained – should have rained) last night.
16. Mona is never late, (is she – isn't she – won't she – will she)?
17. I'm not rich enough to buy that car, (aren't I – don't I – can I – am I)?
18. Not everyone enjoys sport, (do they – don't they – didn't he – does he)?
19. Let's go out tonight, (will you – won't you – should we – shall we)?
20. She'd rather not sign the cheque, (did she – hadn't she – wouldn't she – would she)?
Find the mistake in each of the following sentences then write it correctly:
1- He can't be rich. He owns two cars and a large house.
2- He must be ill. He eats like a horse.
3- You've been travelling all day. You can't be tired.
4- They haven't lived here for very long. They must know many people.
5- Ali hasn't contacted me. He mustn't have got my message.
6- She must be here. I know for certain that she's away on holiday.
7- She must have arrived. I'm not sure.
8- She must have arrived yet. It's much too early.
9- I can't find the theatre tickets. They must fall out of my pocket.
10- I could go out but I didn't feel like it, so I stayed at home.
11- A: What do you think of my theory? B: I'm not sure. You must be right.
12- A: Do you know where Hala is? B: No, I suppose she should have gone shopping.
13- He doesn't speak Arabic. He must be Egyptian.
14- He never does any work, but he's always at the top of his class. He can't be very clever.
15- Tom might have written this letter because it is in French and he doesn't know French.
16- He mustn't have seen the accident. He was ill in bed when it happened.
17- She's been arrested for murder, isn't she?
18- She rarely reads the papers, hasn't she?
19- Neither of them attended the meeting, didn't they?
They dug the well a week ago, don't they?