I. Complete these sentences with “could, couldn’t” or “was, were able to”.

1.  A girl fell into the river but fortunately we ________ rescue her.

2.  I_______ walk when I was less than a year old.

3.  My grandfather _______walk without any help last night.

4.  _______ you understand what he was saying?

5.  My grandmother ________ speak Spanish.

6.  Suddenly all the lights went out. We ________see a thing.

7.  The computer went wrong, but luckily Emma ________ put it right again.

8.  There was a big party last night. You ______ hear the music half a mile away.

9.  I learnt to read sheet music as a child. I ______ read it when I was five.

10.     People heard warnings about the food, and they _______move out in time.

11.     She wasn’t at home when I phoned but I     _______ contact her at her office.

12.     Mrs Carter _______ put out the fire before the house burnt down.

13.     I looked everywhere for the books, but ______ find it.

14.     The plane ________ take off at eleven o’clock, after the fog had lifted.

15.     Jack was an excellent tennis player. He ________beat anybody.

16.     The car fell into the river. The worker ______ get it out but the driver was dead.

17.     I knew the town so I ______advise him where to go.

18.     Despite the arrival of the storm, they _______finish the football match.

19.     After his car crashes, he was so confused that he ._____tell the police who he was or where he was going.

20.     I haven’t ________ concentrate recently on work. I don’t know what it is.

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