The toy is green.A.那个玩具是红色的。 B.那个玩具是绿色的。
How are you? A. Not very well. B. Thank you.
Glad to meet you. A. How do you do? B. Glad to meet you, too.
Good evening. A. Good morning. B. Good evening.
Look at this dog. A. What’s this?B. Oh, it’s lovely.
What’s this? A. It’s a book.B. My name is Li Yan.