each teacher and each student ___to plant a tree A was asked B were asked

each teacher and each student ___to plant a tree A was asked B were asked
英语人气:677 ℃时间:2019-08-20 18:23:17
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凡是 each.and each.,every.and every.many a .and many a .
在这几个词加上单数可数名字组成的短语作主语的时候,谓语动词要用单数形式,所以选A.
这个是固定结构,一种模式,记下就行了,没有为什么.
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