宾语从句改为简单句

题目

宾语从句改为简单句
1.the poor boy doesn't know when and where he was born
2.The teacher found that the boy was very interested in maths
3.I don't know the reason_____he didn't come
A.that B.which C.why D.who
选择题最好解释一下
应该可以改的
是卷子上的呀

答案

1.When and where was the poor boy born?He doesn't know it.2.The boy was very interested in maths.The teacher found it.3.选C Why.这里why 表示他没来的原因.不能选A that,其实变简单句后就更明显：Why he did...