is known to everybody, the moon travels round the earth once every month.A. It B. AsC. T

发布时间：2020-08-17 12:45:54

      is known to everybody, the moon travels round the earth once every month.
A. It
B. As
C. That
D. What

网友回答

A. It
(答案→)B. As
C. That
D. What
解析：as 引导的是一个非限制性定语从句。
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