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
A: I did the exercise you asked us to do. B: Well done, but you __________ bothered. It was the wrong exercise.
needn't 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
A: I can't remember my password! But I _____ written it in my notebook as sometimes I do that.
may/might/could have
A: I don't think he remembers me. B: Come on, he _________ forgotten you already! He only met you last week!
can't have
A: I wanted to ask my teacher a question but he petrified me, so in the end I ________.
dared not to ask
A: I didn’t have the courage/ I _______ to go rock climbing and now I regret it.
dared not
A: Did you see my holiday photos? B: I did! It _________ been a lot of fun, judging by the big smiles.
must have
A: Aren't you cold? B: Freezing! I didn't know it would rain, I _______ brought a jacket.
should/ought to have
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: 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
A: She _____ cleaned the whole house on her own in two hours. She must have had some help
can't/couldn't have
A: Where's Clare? Her bag's here and her computer's still on so she _____ gone home.
must 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