___is obvious,the earth moves around the sun A.As B.It C.That D.What
问题描述：
___is obvious,the earth moves around the sun A.As B.It C.That D.What
___is obvious,the earth moves around the sun
A.As B.It C.That D.What
请说明理由
为什么不选B
答
AIt is obvious that the earth moves around the sunAs is obvious 做伴随状语 表状态 这个地球围绕太阳的事实 是显然的ps.如果用it 就得改成：It is obvious that the earth moves around the sun...