________ is known to all,Mary is a nice girl.A.As B.It C.Which D.That

________ is known to all,Mary is a nice girl.A.As B.It C.Which D.That
________ is known to all,Mary is a nice girl.
A.As B.It C.Which D.That

________ is known to all,Mary is a nice girl.A.As B.It C.Which D.That
答案A 思路分析：根据句意和结构,此空应填关系代词as代表主句的整个内容,引导非限制性定语从句,并在从句中作主语． 查看原帖>>