If Daisy has not come home yet, she…. for us at the school gate.
A.can’t be waiting
B.would be waiting
C.must still be waiting
D.will be waiting

You can’t mean that! You…. .
A.must be joking
B.can be joking
C.can joke
D.have to joke

You…. book the tickets for the play in advance because they sell out quickly.
A.could
B.mustn't
C.have to
D.may

He was suspected of giving away government secrets to the enemy. They have investigated him for days.
A.Suspecting of giving away government secrets to the enemy, he has investigated them for days.
B.Having suspected of giving away government secrets to the enemy, he has investigated them for days.
C.He had been investigated for days, suspected of giving away government secrets to the enemy.
D. Suspected of giving away government secrets to the enemy, he has been investigated for days.

Travellers are advised to take out insurance. Their luggage may go astray.
A.Travellers should take out insurance if their luggage goes astray.
B.Travellers should get insurance, or else their luggage may go astray.
C.Travellers are advised to take out insurance in case their luggage goes astray.
D.Travellers had better buy insurance as a precaution against their luggage go astray.

You …. the air pressure in your tires if you do not want to get a flat tire on your trip.
A.should be checked
B. do not have to check
C.mustn’t check
D.ought to check

The computer does not work. It…. during transportation.
A.must have been damaged
B.should have been damaged
C.can be damaging
D.will damage

Mary decided not to join us for dinner. She…. stay at work to finish the marketing report.
A.had to
B.must
C.can
D.may

No one but the experts was able to realize that the painting was an imitation. It greatly resembled the original.
A.It was obvious that only a person with great talent could fake a painting so successfully
B.It was hard for ordinary people to judge between the fake painting and the real one, but not for the experts.
C.It was almost impossible for amateurs to realize that the painting was not authentic, though the experts could judge it quite easily.
D.The pointing looked so much like the authentic that only the experts could tell it wasn't genuine.

The man was shot in the bank robbery. The doctors are operating on him.
A.The doctors are operating on the man who was shot in the bank robbery.
B.The man was whom the doctors are operating on him shot in the bank robbery
C.The man whom the doctors are operating on him shot in the bonk robbery.
D.The man was shot in the bank robbery where the doctors are operating on him.