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Exercises for individual work

I. Insert may or might:

1. It ... rain, you’d better take a coat. 2. He said that it ... rain. 3. He said that we ... use his office whenever we liked. 4. You ought to buy now; prices ... go up. 5. You ... be more attentive in class. 6. They said they ... come tomorrow. 7. ... I borrow your umbrella? 8. Some of these mines ... even become profitable again. 9. We ... go to the country tomorrow.

II. Insert can, could or be able to:

1. He was very strong: he ... ski all day and dance all night. 2. I had no key so I ... lock the door. 3. When I first went to Spain I ... read Spanish but I ... speak it. 4. I was a long way from the stage. I ... see all right but I ... hear very well. 5. I’m locked in. I ... get out! (negative). 6. I ... go to the lecture today because I feel bad. 7. When I was a child I ... understand adults, and now when I am an adult I ... understand children. 8. ... you tell me the time, please? I’m afraid I ... . I haven’t got a watch.

III. Change the sentences into the Past and Future Indefinite:

1. He must sell the house. 2. We must do it at once. 3. Must you pay for it yourself? 4. She must learn the text by heart. 5. They must change trains in Paris. 6. They must read it carefully. 7. We must study hard. 8. I must change my shoes. 9. We must hurry. 10. They must be at the University at 8.30.

IV. Insert must or the present, future, or past form of have to:

1. You ... read this book. It’s really excellent. 2. She felt ill and ... leave early. 3. Mr Pitt ... cook his own meals. His wife is away. 4. Farmers ... get up early. 5. Park notice: All dogs ... be kept on leads. 6. Employer: You ... come to work in time. 7. He sees very badly and he ... wear glasses all the time. 8. Tell her that she ... be here by six. I insist on it. 9. The buses were all full and I ... get a taxi. 10. This work ... be done at once. 11. I hadn’t enough money and I ... pay by cheque. 12. You ... be careful crossing the road. 13. I never remember his address; I always ... look it up.

V. Insert must not or need not:

1. We ... drive fast; we have plenty of time. 2. You ... drive fast; there is a speed limit here. 3. You ... drink this: it is poison. 4. You ... smoke in a non-smoking compartment. 5. You ... ring the bell; I have a key. 6. Mother to child: You ... play with matches. 7. You ... write to him for he will be here tomorrow. 8. You ... bring an umbrella. It isn’t going to rain. 9. Candidates ... bring books into the examination room. 10. You ... do all the exercise. Ten sentences will be enough. 11. We ... make any noise or we’ll wake the baby. 12. I’ll lend you the money and you ... pay me back till next month.

VI. Put «to» where necessary:

1. He was able (explain). 2. He should (be) ready by now. 3. May I (ask) you a question? 4. You are not (mention) this to anyone. 5. The doctor said that I ought (give up) smoking. 6. It might (kill) somebody. 7. You needn’t (come) tomorrow. 8. He has (do) it himself. 9. We’ve got (get out). 10. You ought (have finished) it last night. 11. We didn’t have (pay) anything. 12. She ought (accept) the offer. 13. You can’t (cross) the street here. 14. You could (see) the sea from the house. 15. They ought (warn) people about the dangerous currents. 16. He used (live) here.

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