3 Zakreśl wyrazy, które poprawnie uzupełniają poniższe zdania.

1 X: What are you doing, Mark? You shouldn’t / could get out of bed. You’re still very weak.

Y: Oh, come on! I’m sure I couldn’t / can go to the toilet on my own.

2 I won a tennis competition last week and I still can’t / should believe it!

3 Pity I couldn’t / can’t see you taking part in the marathon last Friday. I was out of town.

4 In order to win the next game, Frank should / couldn’t practise more, not just from time to time.

5 Maybe it is hard to believe, but my brother could / can ski when he was only four!