1. Fill in can't, might, must or could:
I wonder where Paul is. He 1) can't be at work because he never works on a Sunday. He 2) be at Sally's, but I doubt it because they haven't been speaking lately. I wonder if he 3) be at his cottage in the country. No, he 4) be because he told me they've rented it to someone else for the summer. He 5) have gone bowling, but I'm almost sure he told me he'd got tired of it. I know! He 6) have gone swimming, because I remember him asking me if I wanted to go with him.
2. Fill in can, couldn't, may, mustn't, can't or (not) be allowed to:
| David: | 1) Can I go to the cinema tonight? |
| Mrs Stone: | You know you 2) are not allowed to go out during the week. |
| David: | But I 3) go out last Saturday either. I think Dad is too strict. |
| Mrs Stone: | You 4) speak about your father like that. He's doing what he thinksis best. |
| David: | 5) I have some friends over, then? |
| Mr Stone: | I'm afraid you 6) . We're having some friends to dinner. |
| David: | 7) I at least watch TV for a while? |
| Mrs Stone: | Yes, you 8) , but only after you've done your homework. |
| David: | But I haven't got any homework! |
| Mrs Stone: | Oh! Well, in that case, you 9) go out, but you 10) be home late. |
| David: | I'll be home by 11. I promise. |
3. Fill in should, shouldn't, ought to or had better:
| Dan: | You 1) should really do something about your car. |
| Sally: | What do you mean? |
| Dan: | It's in terrible condition. You 2) get a new one before the police stop you. |
| Sally: | But I can't afford a new one! |
| Dan: | Well, you 3) at least have the exhaust seen to. And you 4) have the brakes repaired before you kill somebody. |
| Sally: | I suppose I 5) . But you 6) lend me some money to pay for the repairs. |
| Dan: | Sally, have you spent the money I lent you last week? You 7) have spent it all! |
4. Fill in: must(n't), (not) have to, ought to or need(n't) in the correct form.
Yesterday when I was at the museum a fire broke out. We 1) had to leave the building. We were told that we 2) panic as it was a small fire, but that we should all go outside. In the end, they were able to put out the fire and they 3) call the fire brigade. Unfortunately, one of the rooms 4) painting again as the smoke damaged it. The police said that the museum 5) have better security and that all visitors 6) make sure they know where the fire exits are.
5. Fill in must or have to:
Welcome on behalf of Newton Industries. I'd like to explain a few of the factory rules. Mr Newton has said we 1) have to wear overalls at all times. He wants us to arrive at 8 am and we 2) clock in. There is a possibility of working overtime but you 3) decide whether you want to work extra hours. Mr Newton insists that we 4) have fifteen-minute breaks every three or four hours but we 5) choose when we would like those breaks. There is a problem with parking. The city insists we 6) use the public garage. They believe parking on the grass is too damaging to public property and I 7) say I agree. Finally, as far as health insurance is concerned, you 8) register as soon as possible. Are there any questions?
6. Complete the sentences using the words listed in the box below: