阅读对话 ,判断正误 。
Helen: Good afternoon, Liu Tao.
Liu Tao: Good afternoon, Helen.
Helen: This is Wang Bing. He's my friend.
Liu Tao; Hi, Wang Bing.
Wang Bing: Hi, Liu Tao.
Liu Tao: This is Yang Ling. She's my friend.
Helen & Wang Bing: Hi, Yang Ling.
Yang Ling: Hi.
Liu Tao: Let's play together(一起).