Howlongdoyouthinkitwillbemanca

-----How long do you think it will be _____man can finally solve the problem of cancer?
------Well．it depends．

A．when

B．until

C．after

D．before

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--- Are you going to see The Flowers of War by Zhang Yimou?
--- _______It’s said to be too good a film to miss.

A．No problem!	B．That’s for sure.
C．Why me?	D．Why bother?

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No matter ______ the CRH accident in Wenzhou, it had and will have much warning significance.

A．how the investigators said caused	B．what the investigators said caused
C．why the investigators said caused	D．the investigators said how caused

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It has been announced that all the students ____ put on masks before going to school in case they are infected with SARS virus.

A．shall

B．will

C．need

D．may

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—Have you been to the Great Wall?
—Perhaps not in my memory. ________, it might have been during my early childhood.

A．If any

B．If so

C．If ever

D．If not

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The question that puzzled them is ____ they can get rid of the air pollution in the area.

A．how is it that

B．that how

C．what is it

D．how it is that

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