4.I think he --------- to see his mother if he -------- time

4.I think he _________ to see his mother if he ________ time.
A.will go,has B.will go ,will have
C.would go,would have D.would go,had
would 和will有什么区别捏?
5.
Do you knoe ___________?
Yes,it's about Liu Xiang.
A.what the news are B.that is the news
C.what the news is D.wht are the news
还有:让我们洗澡,让食物成长...
这些用英语怎么翻译?那个让怎么翻译啊?