当你向别人介绍这是我的老师时，你应该说（）

A.What’s your name

B.Hello

C.Hi,I’m Jenny

A．This is my mother

B．This is my father

C．It is my mother

A．This is Mr White. He’s a teacher

B．This is Miss White. She’s a teacher

C．This is Miss White. He’s a teacher

A．Welcome back

B．This is my new class

C．This is my new teacher

A．She is my mother

B．l am mother

C．This is my mother

B．Hello, Lily

C．This is my new friend, Lily

A．This is Sam

B．This is my brother

C．This is Mike

A.Hello

B.ye

C.Hi

A.There is my room

B.This is my room

C.There is a room

A．I am Gao Fei

B．This is my friend，Gao Fei

C．He is ten

A.Hi, Amy. This is John

B.Hi, Amy. I am John

C.Hi, John. This is Amy