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—Turn off the TV,Jack._______ your homework now?

—Mum,just ten more minutes,please.

A.Should you be doing                                     B.Shouldn’t you be doing

C.Couldn’t you be doing                                          D.Will you be doing

B


解析:

Shouldn’t you be doing your homework now?表示“难道你现在不应该做作业吗?”是一种责备的口吻。根据答语,应选B项。Should you be doing your homework now?表示“你现在应该做作业吗?”暗示现在不应该做作业。所以是错误的。

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