Exercise 131. Choose the proper word from brackets: 1. (Can, may) you play the piano? 2. (Can, may) Benny watch TV before
going to bed? 3. I think I (can, may) do the work myself. 4. (Can, may) your
friend speak English? 5. (Can, may) I have another cup of tea? 6.You (Can,
may) stay a little longer if you like. 7.I (cannot, may not) hear you. Speak
louder, please. 8. You (Can, may) take the book home. 9. (Can, may) I leave my
bag with you? 10.I (cannot, may not) believe that.
Exercise 132. Fill in the blanks with can or may in the correct form: 1. … I visit you one of these days? 2. … you lift this box? 3. When the
fog lifted we … see where we were. 4. She asked me if she … use my
dictionary. 5. The telephone is out of order. I … not hear anything. 6. … you
help me a little? 7. … I read the letter? 8. You … think whatever you like. 9. I
… not walk so quickly. I have a weak heart. 10. You … take the textbook. I
don’t need it any longer.
Exercise 133. Fill in the blanks with must not or need not: 1. You … ring the bell , I have a key. 2. “You … play with matches,” said
Mother. 3. I … go to the shops today. There is plenty of food in the house. 4.
You … strike a match; the room is full of gas. 5. We … drive fast; we have
plenty of time. 6. You … drive fast; there is a speed limit here. 7. You … turn
on the light; I can see quite well. 8. You … ask a woman her age. It’s not polite.
Exercise 134. Rewrite the following sentences using the words in brackets. Change the modal verb can (could) with the expression to be able to where it is possible. 1.I can give you my book for a couple of days (after I have read it). 2. He
can ski (for ten years). 3. We knew that she could swim (since a child). 4. You
cannot take part in this serious sport competition (until you have mastered good
skills). 5. I could not solve the problem (before he explained it to me). 6. They
can (never) appreciate your kindness. 7. I was sure you could translate that
article (after you had translated so many texts on physics). 8. You can go to the
country (when you have passed your last examination). 9. We can pass to the
next exercise (when we have done this one).
