—Idontsupposethepoliceknowwhod

—I don't suppose the police know who did it.
—Well, surprisingly they do. A man has been arrested and ______ now.

A．has been questioned

B．is being questioned

C．is questioning

D．has questioned

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There fell a heavy snow last December, and this year ___ a good harvest.

A．proves

B．means

C．allows

D．promises

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A．what

B．that

C．it

D．which

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----I’d like to buy a present for my teacher’s birthday, ___ at a proper price, but of great value.

A．that

B．one

C．it

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—Does he know how to work out the problem?---Yes, he has ___ a good idea to solve it. ----Yes, he has ___ a good idea to solve it.

A．caught up with

B．kept up with

C．come up with

D．put up with

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---Excuse me,but I want to ride your bike to go to the bookshop.
---You ____ have my bike if you don't take care of it.

A．shan’t

B．might not

C．needn’t

D．shouln’t

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