He is the only one of the students who _______ a winner of scholarship(奖学金) for three years.
| A．is | B．are | C．has been | D．have been |
The law says that all public buildings must be accessible to people who have trouble _____.
| A．walking | B．walk | C．to walk | D．walked |
At the moment of the car accident, Jason’s life _____ in the blink of an eye.
| A．changes | B．had changed | C．was changing | D．changed |
I suppose you are unwilling to change your idea, _____?
| A．aren’t you | B．do I | C．don’t I | D．are you |
–Do you know where David is? I couldn’t find him anywhere.
– Well. He _____ have gone far — his glasses are still here.
| A．shouldn’t | B．mustn’t | C．can’t | D．wouldn’t |
–What is the man, actually?
– I don’t know for sure. But I think he can be _____ but a policeman.
| A．nothing | B．something | C．everything | D．anything |