You _________________ (be ) ill yesterday. Aussie told me he had seen you playing bowling at the mall.
can't have been
Jackie looked happy. She __________________ (pass) her driving test.
must have passed
Scientists are not sure but they believe that some living organisms _________________ (exist) on Mars 20.000 years ago.
may have existed / might have existed
I don't know where they went but they ________________ (go) to Russia. They were looking for somewhere cold for holiday.
might have gone
The window was broken. Somebody _________________ (break) into their house yesterday.
must have broken
Look how badly you have failed. You _________________ (study) for your test instead of playing video games all the time.
should have studied
His car isn't here. He _______________ (leave) the city already.
must have left
You have gained a lot of weight. Maybe you _________________ (eat) too much junk food.
shouldn't have eaten
The bystanders are not sure but they said the cyclist who stole the lady's phone _________________ (ride) to downtown.
might have ridden
You _________________ (yell) at her. She will never forgive you.
shouldn't have yelled
The boss is in a terrible mood. The meeting _________________ (be) good.
can't have been
John has forgotten about the meeting, obviously. You _________________ (remind) him. Now, it is too late.
should have reminded
I waited for a bus for 45 minutes yesterday. There _________________ (be) an accident or a strike.
may have been / might have been
Andrew did no revision nor he came to school, but still passed the test. He _________________ (cheat).
may have cheated / might have cheated
The concert was fantastic. You really _________________ (come) with us.
should have come
