题目内容

When David arrived, he learned Jack ______for almost two hours.

A. had gone
B. had set off
C. had left
D. had been away

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You should have put the yogurt into the fridge. I expect it _____undrinkableby now.

A. became
B. had become
C. has become

Even if she herself_______ tomorow, it _____too late to do anything.

A. will come; is
B. should come; were
C. comes; will be

A bell rang again! It was the third time someone ______me that evening.

A. has interrupted
B. had interrupted
C. to have interrupted

- Can 1 help you, sir?- Yes. I bought this radio here yesterday, but it________.

A. didn't work
B. won't work
C. can't work
D. doesn't work

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