情景交际：根据上下文补全对话。
Peter: What's your 1______ subject, Lily?
Lily: Well, I like math 2______. It's 3______.
Peter: Interesting? Math is boring. Science 4______ my favorite. It's very interesting,
and Mr Green is a good teacher. So, who's your math teacher?
Lily: Mrs Gao. She's great, though she is a bit strict with us.
Peter: 5______. do you have math class?
Lily: I have math 6______ Monday, Wednesday 7______ Friday. What 8______ you?
Peter: I have math on Monday and Thursday.
Lily: 9______ your favorite day?
Peter: Tuesday. 10______ I have science that day.
Lily: Oh, I see.
