____ is possible for everyone to make a mistake.A.He B.This C.It D.That
问题描述：
____ is possible for everyone to make a mistake.A.He B.This C.It D.That
答
____ is possible for everyone to make a mistake.A.He B.This C.It D.That
选C
这是it作形式主语的用法
其他词都没有这种用法
【it's possible for sb to do sth】固定句型 某人做...是有可能的