—Can you describe _____ it happened?
—Yes, I was riding on my bike _____ a car knocked me down from behind.
A. when; as B. how; as C. how; when D. how; while
It really seemed ages _____ the police came on the scene and cleared away the damaged
cars.
A. before B. after C. when D. as
Finding her car stolen, _____.
A. a policeman was asked to help B. the area was searched thoroughly
C. it was looked for everywhere D. Mrs. Green reported it to the police
_____ lots of times, the song doesn’t sound as nice as before.
A. Hearing B. To hear C. Having heard D. Heard
But for your support then, I don’t think we _____ the task.
A. can manage B. could have managed
C. could manage D. can have managed
—Do you know where the headmaster is? I have something urgent.
—Oh, he ____ have gone far, for the computer is still on in the office.
A. won’t B. mustn’t C. can’t D. wouldn’t