问题
选择题
______ is known to us all is that China has launched Shenzhou V spaceship successfully.
A．That
B．What
C．It
D．As
答案
答案：B
此题考查主语从句，其主语从句缺少主语，What在此等于the thing which，故选B项。
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______ is known to us all is that China has launched Shenzhou V spaceship successfully.
A．That
B．What
C．It
D．As
答案：B
此题考查主语从句，其主语从句缺少主语，What在此等于the thing which，故选B项。