What's this It's pen .为什么答句不用this is pen,到底it,that ,this 的用法区别是什
人气：350 ℃ 时间：2020-03-07 01:52:04
解答
先纠正原句的错误,是What's this?It's a pen.用it是一种固定用法,不必考虑其它的
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