I’ll meet you _____ _____ hour. A. on a B. in an
( )Sarah: Good morning, Mr. Black! Mr. Black:
( )Mrs White: Hello, Mike. Mike:
( )Sarah: Bye, Wu Yifan. Wu Yifan:
( )你向你的妈妈介绍你的同学Sarah时,你说: A . Hello, Sarah. B. Hello, I’m Sarah. C . This is Sarah.
( )当你想向朋友介绍John, 你应该说: A. I am John. B. I am John. C. What is your name?