补全对话。 在横线上填上一个适当的单词, 补全对话。
A: May I help you?
B: Yes, . I want to join a club.
A: What do you want to ?
B: Sorry, I don't know.
A: What you do?
B: I can the guitar, I can't play well.
A: Can you ?
B: Yes, I think I can sing very .
A: OK, you can join the club.
B: Thanks a lot.
A: Not at all.
