was known to them all that Bob had broken his promise he would give them a rise.A. As; w

发布时间：2020-08-17 12:56:46

     was known to them all that Bob had broken his promise      he would give them a rise.
A. As; which
B. What; that
C. It; that 　
D. It; which

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A. As; which
B. What; that
(答案→)C. It; that 　
D. It; which
解析：此处It为形式主语,第一个that引导主语从句,第二个that引导同位语从句。
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