说明原因,为什么!1、Everyone should do duty,shouldn't ?A

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/10 17:53:01

说明原因,为什么!
1、Everyone should do ______ duty,shouldn't ______?
A.one's; his B.his; he C.their; they D.his; they
2、My little cousin ______ is only nine years old won the first prize in the city chess competition.
A.whay B.which C.whose D.who
第一题，但是为什么呢？

1选D,do one's duty 是一个固定用法,但这里的one's在具体用的时候要变为具体相应的形容词性的物主代词,所以第一个空选his,everyone 强点的是总体,所以否定时用they
2选D,此句的主干是"my little cousin won the.”所以中间是一个定语从句,定语从句的连接词没有what,所以排除A,whose后面应跟名词,所以排除C,my little cousin 是一个人,所以连接词用who

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