问题
选择题
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
答案
C
考主语从句中的形式主语。
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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
C
考主语从句中的形式主语。
