问题描述：
His parents found _____
A.it necessary B.that necessary C.it is necessary D.necessary
我很奇怪,为什么答案是A?C咋地就不可以拉?it...和it is.有什么区别?
后面的是to tell him everything that had happend
A.it necessary B.that necessary C.it is necessary D.necessary
我很奇怪,为什么答案是A?C咋地就不可以拉?it...和it is.有什么区别?
后面的是to tell him everything that had happend
问题解答：
我来补答展开全文阅读