grammar tense

来源：学生作业帮编辑：搜狗做题网作业帮分类：英语作业时间：2024/06/25 22:22:02

grammar tense
the two gray cats sitting by the trash can belong to a neighbor
为什么这里没有are sitting

因为句子后面有一个can了.
Can是情态动词.
一个句子里面不可能有两个动词.
这里的sitting by the trash是用来修饰the two gray cats的..所以不用加 are

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