题目内容：

One morning，I was waiting at the bus stop，worried about being late for school.There were many people  1.(wait)at the bus stop，and some of them looked very anxious and 2.(disappoint)．When the bus finally came，we all hurried on board.I got a place next 3. the window，so I had a good view of the sidewalk.A boy on a bike caught my attention.He 4.(ride) beside the bus and waving his arms.I heard a passenger behind me shouting to the driver， 5. he refused to stop 6. we reached the next stop.Still，the boy kept riding.He was carrying something over his shoulder and shouting.Finally，when we came to the next stop，the boy came up to the door of the bus，and I heard an 7. (excite)conversation.Then the driver stood up and asked，“Did anyone lose a suitcase at the last stop？” A woman on the bus shouted，“Oh dear! It's  8. (I)．”She pushed her way to the driver and took the suitcase thankfully.Everyone on the bus began talking about what the boy 9. (do)，and the crowd of strangers 10. (sudden)became friendly to one another.