1.Hello Who's that?_______________ A I'm Liu Yun b This is Liu Yun C She is Kiu Yun D He is Liu Yun
问题描述：
1.Hello Who's that?_______________ A I'm Liu Yun b This is Liu Yun C She is Kiu Yun D He is Liu Yun
答
B
电话中,常常用“this is..”来进行自我介绍