is known to all that Taiwan is part of China and it shall not be separated from the mainla

发布时间：2020-08-17 11:56:26

     is known to all that Taiwan is part of China and it shall not be separated from the mainland.
A. That
B. As
C. It
D. What

网友回答

A. That
B. As
(答案→)C. It
D. What
解析：考主语从句中的形式主语。
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