Can I have an eraser? ---Yes, .
()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?