Ms Gao,_____my mother.Mum,_____Ms Gao. A:this is;this is B:she is;this is C:she is;she is
问题描述:
Ms Gao,_____my mother.Mum,_____Ms Gao. A:this is;this is B:she is;this is C:she is;she is
答
A
给对方介绍第三者时用this is