Can/Could Exercise
Level: B2
Use the verb can in the correct form followed by the appropriate infinitive:
- Have you a friend whom ... you ... (to trust) for all your life?
- What … he (to do) all this time? He has been gone for twenty minutes.
- He … not (to see) me. I came when he had gone.
- How … you (to make) such a mistake as to suppose that I was a lier?
- Surely you ... (to do) it before. What have you been doing all the day?
- The work ... not (to do) in an hour.
- Our house was built on the top of the hill and ... (to see) from afar.
- I ... not (to sleep) two hours, I still feel tired.
- He ... not (to be) her twin brother: he is too slim.
- They ... not (to hear) us. Knock again.
- If you had asked me for money I... (to lend) yousome.
- He ... (to help) me but he refused to.
- 13.He still not … (to sleep)? It seems to me it is too late.
- I … (not /to dance) — I wish I … .
- She has a university education and ... (to make) a career for herself if she hadn’t married.
- You not (to forget). I don’t believe you.
- She was not well. She ... ( not leave) her cabin.
- Negotiators ... discuss it now, clause by clause.
- My son is not in town; but he will be before long. … I (to give) him any message?
- She ... (to win) but, unfortunately she lost.
- She … (to enjoy) the performance as it was boring
- He is in the next room, and he... ( to lie) on the sofa now.
- What … (to happen) to change him so much?
- … there … (to be)any misunderstanding in our first encounter?
- A policeman arrived and told him he ... ( not to park) there.
- … he … (to steal) a bracelet? Do you think it possible?
- How did he get to know it? Who ... he ( to talk) to?
- “There’s no such train.” “We came by it.” “You... (to do).”
- “Life,” the old man said, “can only be understood backward. Now I see clearly all the mistakes I made and ... (to avoid).”
- Really he had no idea that she ... (to use) watercolour as well as that.
- have been able
- can he have been doing
- can not have seen
- can you have made
- could have done
- can not have been done
- can be seen
- could not sleep
- can not be
- can not have heard
- could have lent
- could have helped
- can not he still not be sleeping
- could
- could have made
- can not have forgotten
- could not leave
- could be discussing
- can I give
- could have won
- can not have enjoyed
- could be lying
- can have happened
- can there have been
- could not park
- can he have stolen
- could he have talked
- can not have
- could have avoided
- could use