For parents,___ is very important to set a good example to their children.A.it B.what C.this D.that为什么选A?
问题描述:
For parents,___ is very important to set a good example to their children.
A.it B.what C.this D.that
为什么选A?
答
A.
it 作形式主语,真正主语是to set a good example to their children.“为他们的孩子树立一个好的榜样”