Everyoneinthiscountryshouldwor

Everyone in this country should work hard and do what they can _____ against national smog.

A．fight

B．fought

C．fighting

D．to fight

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Reportedly yesterday a group of American soldiers were walking along the road in Iraq when a bomb（炸弹） was _____, three of whom were killed.

A．set about

B．set off

C．set up

D．set out

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He is never allowed ________ in the room.

A．to smoke

B．smoking

C．smoked

D．to be smoked

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They want to know ________ do to help us.

A．what can they

B．how they can

C．what they can

D．how can they

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— I must have a balanced diet. I carry too much fat.
— ________.

A．Congratulations

B．Good idea

C．Good luck

D．Don’t mention it

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—Have you heard the story of “The Merchant of Venice”?
—No. When and where does the story ______?

A．take up

B．take on

C．take place

D．take off

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