问题详情：
补全对话。通读下列对话，然后根据上下文补全对话内容。
A：Hi, good afternoon!
B: 1. __________________ !Are you free this afternoon?
A: No. I have to have a piano lesson.
B: 2._______________________ _________ ?
A: I have piano lessons twice a week , on Wednesday and Friday.
B: What about tomorrow? Let’s watch TV together.
A: OK. What do you plan to watch?
B: I plan to watch cartoons. I like watching them very much.
A: 3_______________________________________________ ?
B: Because they are very funny. 4__________________________________ ?
A: I don’t mind them. OK, let,s watch cartoohs together. See you tomorrow.
5. ____________________ .
【回答】
1. Good afternoon.
2. How often do you have piano lessons?
3. Why do you like them?
4. What do you think of them / How do you like them ?
5. See you.
知识点：补充句子
题型：补全对话
