情景交际: 当你想把Mark介绍给你的同学时，你应该说： __（）

A.She is Tom

B.This is Tom

C.Hello, Tom

A.Hi mum, this is Mike

B.Hi, I am Mike

C.Hello, I'm Mike

A.This is Sasa

B.That is Sasa

C.Sasa

A.It's sunny

B.It's windy

C.It's cloudy

A.Where is Tom

B.Who is Tom

C.What is Tom

B．Hello.I am Mark

C．Hello.This is Mark

A.评估稳定度

B.八卦心

C.对你一见钟情

D.想把儿子/女儿介绍给你

A．Good afternoon

B．Hello

C．Good morning

A.This is Amy. She's a teacher

B.This is Amy. She's a student

C.This is Amy. He's a student

A.Hello mom

B.Hi Mike

C.Mom,this is Mike

A.角膜

B.巩膜

C.虹膜

D.晶状体