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1 Put in the modal verbs may or can:

1 I … finish the work tomorrow if no one bothers me anymore. 2 … we come and see you next Sunday at three o’clock in the afternoon? 3 What time is it? – It ... be about six o’clock, but I am not sure. 4 Only a person who knows the language very well … answer such a question. 5 … I come in? 6 Let me look at your exercises? 7 I … not swim, because until this year the doctor did not allow me to be than two minutes in the water. But this year he says I … stay in for fifteen minutes if I like, so I am going to learn to swim. 8 Libraries are quite free, and anyone who likes … get books there. 9 I … come and see you tomorrow if I have time. 10 Take your raincoat with you: it … rain today. 11 I don’t think I ... be here by eleven o’clock tomorrow, but I … be. 12 … you see anything in this inky darkness? 13 You … go when you have finished your test.

2 Ask politely:

1 … I speak to Mr. Pitt, please? - I’m afraid he’s out at the moment. … you ring back later? 2 If a letter comes to me … you please forward it to this address? 3 … you tell me the time, please? - I’m afraid, I … not. I haven’t got a watch. 4 … you lend me 2500 pounds? – No, I … not. 5 I wonder if you … help me? – With great pleasure. 6 Excuse me, … you tell me the time of the next train, please? – Yes, certainly. 11:30, platform 3. 7 … I have some more coffee, please. 8 … you come to the party at my place Thursday evening? Thanks a lot. What time? Is it something special? 9 Excuse me, … you tell me the way to the nearest underground station? – Oh, I’m sorry, I … not. I’m afraid I’m lost myself. Let’s ask the policeman over there. 10 … you help me with my luggage, please? – Yes, certainly.

3 A) Paraphrase the following questions using must. Answer the expressing obligation or the absence of necessity:

1 Is it necessary for us to read the text? 2 Is it necessary for me to visit him there? 3 Is it necessary for you to explain your choice? 4 Is it necessary for me to go to the meeting? 5 Is it necessary for them to meet her? 6 Is it necessary for me to leave at once? 7 Is it necessary for us to invite her tonight? 8 Is it necessary for him to speak to the Dean? 9 Is it necessary for her to consult the doctor? 10 Is it necessary for me to do it now?

b) Give the opposite of the following:

1 You must speak louder. (I hear you quite well.) 2 You must come at 9 o’clock. (the classes start at 10 p.m.) 3 He must hurry if he wants to catch the train. (He has plenty at time.) 4 I must stay home tonight. (Nobody is going to call on me.) 5 You must ring up home at once. (I’ve just had a talk with my family.) 6 You must speak to the Dean to arrange the matter. (The group leader … has already solved the problem.) 7 She must go to the clinic at once. (The doctor is coming here.) 8 You must take a porter to help you with the luggage. (You luggage isn’t heavy.) 9 You must post the letter at once. (I’m going past the post office.) 10 They must wait for his call until the morning. (He’s just rung them up.)

c) Use mustn’t/needn’t to fill the spaces in the following sentences:

1 You write to him for he’ll be here tomorrow. 2 You … make any noise or we’ll wake the baby. 3 We … open the lion’s cage. It’s contrary to Zoo regulations. 4 You … bring an umbrella. It isn’t going to rain. 5 You … do all the exercises. Five exercises will be enough. 6 You … make any more sandwiches: we have plenty now. 7 You … clean the window. The window-cleaner is coming tomorrow. 8 You … drive fast; we have plenty of time. 9 You … drive fast; there’s a speed limit here. 10 You … interrupt when somebody is speaking.

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