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Why haven't you finished your homework yet? You___________ to have finished it by last Sunday.

A. are supposed                  B. were supposed    

C. are supposing                 D. were supposing

B


解析:

本題考查的是be supposed to的用法。題意為“你為什么還沒完成作業(yè)?你上個周日就應(yīng)該完成了。”在本題中be supposed to have finished相當(dāng)于should have finished，意為“本來應(yīng)該完成而實際上沒有”。

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