题目内容：

_____ my dream to have a big house.
A.I have
B.In
C.It's
D.It has

优质解答

（C.It's） my dream to have a big house.
我的梦想是拥有一栋大房子.
It's + 表语 + to do,做某事如何.it是形式主语,不定式to do是句子的真正主语.