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________acertaindoubtamongtheworkersastothenecessityoft...

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问题详情:

________acertaindoubtamongtheworkersastothenecessityoft...

________ a certain doubt among the workers as to the necessity of the work.

A.There existed  B.It existed

C.There had  D.It had

【回答】

A 此处There existed a certain doubt=There was a certain doubt,是There be结构的变式。

知识点:固定句型

题型:选择题

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