who is this 或Who is that的回答可以用she is 或he is吗还是必须用this is 或that is
问题描述:
who is this 或Who is that的回答可以用she is 或he is吗还是必须用this is 或that is
答
最好使用原来疑问句所提供的代词,即:
This is Tom.
That is Mary.