将所给句子重新排序，组成完整对话。(6分)
（1）Let me have a look.
（2）Oh, dear. I’m late.
（3）Excuse me.
（4）What’s the time?
（5）Oh, it’s seven thirty.
（6）I go to school at seven thirty-five.
（7）Don’t worry. You can go by bus.