DoyouknowwhereDavidis?Icouldn’

-----Do you know where David is ? I couldn’t find him anywhere.
-----Well. He _______have gone far-----his coat’s still here.

A．shouldn’t

B．mustn’t

C．can’t

D．wouldn’t

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— Linda, can you give me some tips on doing this project?
— Sorry, but I’m not the person to ______ how the job should be done.

A．determine

B．persuade

C．recommend

D．influence

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Don’t only give me a simple answer. Explain it _______ possible.

A．whatever

B．however

C．whoever

D．whenever

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— Mum, would you please buy me an MP5 player?
— If you can help do the dishes the whole vacation, you ______ have one as a reward.

A．would

B．shall

C．may

D．must

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The retired worker likes getting up early. The air in the morning is good ______.

A．being breathed

B．breathing

C．to be breathed

D．to breathe

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They must have finished the work by the end of last month, ______?

A．hadn’t they

B．mustn’t they

C．haven’t they

D．didn’t they

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