15.Isn’t it time you got down to the papers? A.mark B.be marked C.being marked D.marking 解析:get down to意为“开始.着手 .to是介词.后接名词或动名词.表示“难道没有到你给论文打分的时间吗? 答案:D 查看更多

 

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Isn’t it time you got down to                 the papers?

       A.mark                                                  B.be marked

       C.being marked                                      D.marking

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Isn’t it time you got down to________the papers?

A.mark B.be marked

C.being marked D.marking

 

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Isn't it time you got down to ________ the papers?

[  ]

A.mark

B.be marked

C.being marked

D.marking

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Isn't it time you got down to ________ the papers?

[  ]

A.mark

B.be marked

C.being marked

D.marking

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Isn't it time you got down to ________ the papers?

[  ]

A.mark

B.be marked

C.being marked

D.marking

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