作业帮--what's this?--_____is a pen.为什么要填these?为什么不能填it?
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/17 11:30:59
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--what's this?--_____is a pen.为什么要填these?为什么不能填it?
--what's this?--_____is a pen.为什么要填these?为什么不能填it?
--what's this?--_____is a pen.为什么要填these?为什么不能填it?
答案应该是“This”不是“These”.
This用于单数而These用于复数.
日常生活中用的时候并不一定要填this,（it也可以）只是在中国的语法教育中it不对而已.
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