3．One morning，I was waiting at the bus stop，worried about （36）Clate for school．There were many people waiting in line at the bus stop，（37）Asome of them looked very anxious（焦虑的） and disappointed．
When the bus finally came，we all hurried on board．I got a place （38）Dthe window，so I had a good view（视野） of the sidewalk．A boy on a bike （39）Amy attention．He （40）Cbeside the bus while waving his arms．I heard a passenger behind me shouting to the （41）C，but he refused （42）Cuntil we reached the next stop．The bus drove fast，and the boy tried his best to catch up with it．It（43）Bthat he was a little tired，but he still kept riding．And he was carrying （44）Aover his shoulder and shouting．
Finally，when we came to the next stop，to our surprise，the boy ran up to the door of the bus．I heard an exciting （45）A．Then the driver stood up and asked，"（46）Canyone lose a suitcase at the bus stop？"A woman on the bus shouted，"Oh，dear!It's （47）A．"She pushed her way to the driver and took the suitcase （48）B．Everyone on the bus began talking about （49）Cthe boy bad done，and the crowds of strangers suddenly became to one （50）B．
Sometimes even something small can change a lot!What an unforgettable experience!
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When the bus finally came，we all hurried on board．I got a place （38）Dthe window，so I had a good view（视野） of the sidewalk．A boy on a bike （39）Amy attention．He （40）Cbeside the bus while waving his arms．I heard a passenger behind me shouting to the （41）C，but he refused （42）Cuntil we reached the next stop．The bus drove fast，and the boy tried his best to catch up with it．It（43）Bthat he was a little tired，but he still kept riding．And he was carrying （44）Aover his shoulder and shouting．
Finally，when we came to the next stop，to our surprise，the boy ran up to the door of the bus．I heard an exciting （45）A．Then the driver stood up and asked，"（46）Canyone lose a suitcase at the bus stop？"A woman on the bus shouted，"Oh，dear!It's （47）A．"She pushed her way to the driver and took the suitcase （48）B．Everyone on the bus began talking about （49）Cthe boy bad done，and the crowds of strangers suddenly became to one （50）B．
Sometimes even something small can change a lot!What an unforgettable experience!
| 36．A．be | B．to be | C．being | D．been |
| 37．A．and | B．since | C．or | D．but |
| 38．A．behind | B．across from | C．in front of | D．next to |
| 39．A．caught | B．caused | C．got | D．missed |
| 40．A．rode | B．was ridden | C．was riding | D．is riding |
| 41．A．policeman | B．boy | C．driver | D．other passengers |
| 42．A．stop | B．stopping | C．to stop | D．stopped |
| 43．A．looked | B．seemed | C．sounded | D．felt |
| 44．A．something | B．nothing | C．anything | D．everything |
| 45．A．conversation | B．speech | C．discussion | D．argument |
| 46．A．Does | B．Has | C．Did | D．Do |
| 47．A．mine | B．my | C．I | D．myself |
| 48．A．angrily | B．thankfully | C．noisily | D．loudly |
| 49．A．which | B．thankfully | C．noisily | D．loudly |
| 50．A．other | B．another | C．others | D．each． |
