A and B后接 is or are?
The blackboard and chalk is being replaced by the computer and the projector 还是
are being replaced by the computer and the projector .我记得 主谓一致原则,应该是用复数才对啊.为什么我做题目的时候答案给的事 is 而不是are
人气：132 ℃ 时间：2020-06-16 13:09:00
解答
这涉及到一个很重要的语法知识点：当句子的主语为下面一种模式：the 名词1 and the 名词2,主语是两个人,所以,谓语动词用复数形式;而当句子主语为;the名词1 and 名词2,主语其实指的是一个人《身兼两职》,这时,谓语动词则用单数形式了…
有不懂的还可以再问我
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