A: Jenny seemed upset on the phone last week. B: She had a cold. It’s quite possible/She ______ still felt really ill.
might/may have
A: She _____ cleaned the whole house on her own in two hours. She must have had some help
can't/couldn't have
A: I can't remember my password! But I _____ written it in my notebook as sometimes I do that.
may/might/could have
A: Where's Clare? Her bag's here and her computer's still on so she _____ gone home.
must have
A: I did the exercise you asked us to do. B: Well done, but you __________ bothered. We were supposed to do it at the lesson.
needn't have
A: Aren't you cold? B: Freezing! I didn't know it would rain, I _______ brought a jacket.
should have
A: Did you see my holiday photos? B: I did! It _________ been a lot of fun, judging by the big smiles.
must have
A: I can’t believe Eddie didn’t give me/ Eddie ______ given me a lift! I take him to work every day. Very annoying!
might/could have given
She ______ called the doctor in the morning ( lost possibility)
could have
A: It was a complicated situation, I didn't know what to do. B: It's blatantly obvious - first thing you _______ done is call the cops!
should have
When th party was over, I realised that I ______ cooked so much food as most of it was untouched.
needn't have
A: Phil flew back from holiday yesterday. B: That’s impossible/He ________. There was a strike at the airport.
can't/couldn't have
My sister ______ speak three languages before she was 10.
could
I _____ studied last week if I'd had more time.
would have
A: I read all the books on the list. B: You _________ - it wasn't necessary at all! We only had to read the first two.
needn't have
We had enough money to pay for the house, so we _____ (take) out moragage.
didn't need to take out
A: I don't think he remembers me. B: Come on, he _________ forgotten you already! He only met you last week!
can't have