The watch is ______ tells the time.A.that B.which that C.which D.that which

题目

The watch is ______ tells the time.A.that B.which that C.which D.that which
回答：为什么？是什么从句？

答案

答案是C,属于表语从句
也可以这样表示 It is the watch which tells the time.