根据下面的对话内容，在对话的空白处填上恰当的表达，使其意思通顺、合理、结构完整。
A: Hi , Tony . I didn't see you last Sunday . Did you go on a school trip ?
B: 小题1:_____________________________. I stayed at home .
A: Oh, really ? 小题2:__________________________?
B: Because I had a lot of thing to do.
A: 小题3:_____________________________ ?
B: I cleaned my room and did my homework . Then I watched TV .
A: Not much fun , I think .
B :Well , it wasn't very bad . I played basketball that afternoon . Was the school trip interesting ?
A: 小题4:____________________________ . We went to the park and the zoo. We flew kites in the park .We had a very good time .
B: 小题5:____________________________?
A: We came back at about 5:30 in the afternoon .
小题1:No.( 或 No , I didn't )
小题2:Why? ( Why did you stay at home ? )
小题3:What did you do ？
小题4:Yes. ( Yes , it was .)
小题5:What time ( When ) did you come back?
题目分析：本文是两个学生之间的对话。
小题1:根据后句I stayed at home .可知此处该作否定回答：No.( 或 No , I didn't )。
小题2:根据答语Because I had a lot of thing to do.及语境可知此处是在问为啥你呆在家里，故回答：Why? ( Why did you stay at home ? )
小题3:根据答语I cleaned my room and did my homework . Then I watched TV . 及语境可知此处是在问你做什么啦，所以回答：What did you do ？
小题4:根据后句We went to the park and the zoo. 可知此处该作肯定回答：Yes. ( Yes , it was .)
小题5:根据答语We came back at about 5:30 in the afternoon .可知此处是在问你何时回来的，所以回答：What time ( When ) did you come back?