This is lane[ ]Sam.Nice to neet you.A; This B;this is.C; than is.D; That's

问题描述:

This is lane[ ]Sam.Nice to neet you.
A; This B;this is.C; than is.D; That's

D.那是桑母。

B

B.this is

B,
因为介绍这两个人时,二者都在跟前,所以用this

应该选B.
用于介绍两位本来互相并不认识的人,见到你们可真高兴!