It’s no long a question now men can land on the moon. A. that B. whichC. whether D. what

发布时间：2020-08-17 13:22:36

It’s no long a question now     men can land on the moon.
A. that
B. which
C. whether
D. what

网友回答

(答案→)A. that
B. which
C. whether
D. what
解析：It在句子中作形式主语，that引导的从句充当真正主语。
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