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【Whyhaven'ttheyfinishedthisworkyet?Theyaresupposed_______itbyFridayevening.A.tofinishB.havingfinishedC.finishedD.tohavefinished选哪一个】
题目内容：
Why haven't they finished this work yet?They are supposed _______ it by Friday evening.
A.to finish B.having finished C.finished D.to have finished
选哪一个优质解答
D,这个句子的意思是为什么他们还没完成工作?他们应该周五晚上就完成的啊.
be supposed to have done 表示过去应该做某事但是没有做,符合这个题意.
A.to finish B.having finished C.finished D.to have finished
选哪一个
优质解答
be supposed to have done 表示过去应该做某事但是没有做,符合这个题意.
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