One afternoon，Mary and I were waiting at the bus station，（41）___（worry） about being late for school．There were many people at the bus station（42）___some of them looked very anxious．（43）___（final） when the bus came，we all got on the bus．I got a seat next（44）___the window，so I had a view of the street．A boy on a bike（45）___（catch） my eyes．He was riding beside the bus and waving（挥动）his arms．A passenger shouted to the driver，but he didn't stop（46）___he reached the next station．Still，the boy kept（47）___（ride）．At last，when the bus（48）___（stop），the boy got on the bus and asked，"Did anyone lose（49）___suitcase at the last station？"A woman on the bus shouted，"Oh，dear!It's（50）___（I）．"