Inordertokeepthebalanceofecosy

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In order to keep the balance of ecosystem, every possible means _______to deal with the problems of the over-exploiting of natural resources.

A．has tried

B．has been tried

C．have taken

D．have been taken

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_____ as the most excellent student in her university, as most classmates had expected, made her parents very happy.

A．Mary was chosen	B．Mary chosen
C．Mary being chosen	D．Mary’s being chosen

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At no time does the salesgirl get up late in the morning, for she is always too busy _____ a good rest.

A．to take

B．taking

C．took

D．taken

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It was _____ computer games that cost the boy a lot of time that he ought to have spent on his lessons.

A．to have played

B．playing

C．played

D．having played

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____ he’s only been learning English for a year, he speaks it very well.

A．Considered	B．Considering
C．Having considered	D．To consider

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--- I hear Warren _____ in a middle school.
　--- What? I can’t imagine him _____ as a teacher.

A．teaches; working	B．teaches; work
C．teach; to work	D．teach; working

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