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Practice

Can/Could

Fill the following spaces, using CAN for present, COULD for past and SHALL/WILL BE ABLE TO for future. There is no need to use other ABLE forms in this section. Put TO where necessary before the infinitives.

 1.            _________ you stand on your head? I ________ when I was at school but  I _______ now. (second verb negative)

2.         When I've passed my driving test I ___________ hire a car from our local  garage.

3.         At the end of the month the Post Office will send him an enormous telephone bill which he _______________ pay. (neg)

4.         I ___________ remember the address. (neg) _____________ you even remember   the street? (neg)

5.         When the fog lifts we _______________ see where we are.

6.         You've put too much in your rucksack; you never ___________ carry all that.

7.         When I was a child I ________________ understand adults, and now that I am an  adult I ________________ understand children. (neg, neg)

8.         When you have taken your degree you ______________ put B. A. after your name?

9.         Don't try to look at all the pictures in the gallery. Otherwise when  you get home you __________________ remember any of them. (neg)

10.       When I first went to Spain I _____________ read Spanish but I __________ speak   it. (sec neg)

11.            _________ you type? Yes. I ____________ type but I ____________ do shorthand. (second neg)

12.       I'm locked in. I __________ get out! (neg). __________ you squeeze between the bars? (neg) No! I _____________; I'm too fat. (neg).

  

In some of the following sentences either COULD or WAS ABLE could be used. In others only WAS/WERE ABLE is possible. Fill the spaces and put TO where necessary before the infinitives.

 13.       He was very strong; he _____________ ski all day and dance all night.

14.       The car plunged into the river. The driver ___________ get out but the passengers were drowned.

15.       I was a long way from the stage. I ____________ see all right but I __________  hear very well. (2nd neg)

16.       We ______________ borrow umbrellas; so we didn't get wet.

17.            _______________ you walk or did they have to carry you?

18.       I had no key so I _______________ lock the door (neg).

19.       I knew the town so I _________________ advise him where to go.

20.       When the garage had repaired our car we ______________ continue our journey.

21.       At five years old he _________________ read quite well.

22.       When I arrived everyone was asleep. Fortunately I _____________ wake my sister and she let me in.

23.       The swimmer was very tired but he ___________ reach the shore before he   collapsed.

24.       The police were suspicious at first but I ________________ convince them that we were innocent.

  

This section includes examples of COULD used for polite requests as a conditional.

 25.            ____________ I speak to Mr. Pitt, please? I'm afraid he's out at the moment.  _____________ you ring back later?

26.       If you stood on my shoulders. _____________ you reach the top of the wall?  No, I'm afraid I _______________. (neg)

27.       If I sang _____________ you accompany me on the piano? No, I ____________; I ______________  play the piano! (neg, neg)

28.       If a letter comes for me _______________ you please forward it to this address?

29.       She made the wall very high so that boys ______________ climb over it. (neg)

30.       They took his passport so that he ______________ leave the country. (neg)

31.            _____________ you tell me the time, please? I'm afraid I _____________. I haven't got a watch.

32.       If you had to, _____________ you go without food for a week? I suppose I ___________  if I had plenty of water.

33.            ____________ you lend me ,5? No, I _________________. (neg)

34.       They used to chain valuable books to library desks so that people   ______________ take them away. (neg)

35.       He says he saw Clementine drowning but ____________ help her as he _________ swim.  (neg. neg)

36.       If you had had the right tools _______________ you have repaired the engine?

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