问题描述：
关于should,would的用法
希望大侠们解答下吧
最好详细说明下哈
If you ____see Kate,give her this book.
A should B would Cshall
He kept his head.Otherwise ,the accident____
A would happened B happened C would have happened
希望大侠们解答下吧
最好详细说明下哈
If you ____see Kate,give her this book.
A should B would Cshall
He kept his head.Otherwise ,the accident____
A would happened B happened C would have happened
问题解答：
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