问题描述: who is that?A.That's a student B.It's Bob C .This is Bob 1个回答 分类:英语 2014-11-13 问题解答: 我来补答 C .This is Bobwho is that?一般是打电话和敲门时,会问你是谁.然后回答必须是this is... 展开全文阅读