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Mary is a careless girl.Around 11:00am last Sunday,she had a very sad experience.Last Sunday,the weather was very nice,she could hear birds singing on the trees.Mary rode her lovely bike to play in the near park.Surpringly,she found that there were people swimming in the lake in the park.About 11:15am,she got off her bike and parked it near a big tree.Then,she walked to the lake to see those people swimming.At that moment,she did not know there was a thief hidden inside the big tree.Five minutes later,at about 11:15am,that thief stole her bike while Mary was playing happily.Another five minutes gone,Mary wanted to go home so that she went back to the big tree.However, she looked around to find her bike.The fact was that her bike was not there anymore.She was so sad so that she cried.Then she ran to the pay-phone to call the polices.

Mary is a careless girl. About 11am last Sunday, she had an experience of sadness. On that Sunday, sun shined, birds sang on trees. Mary biked her favorite bicycle to the park nearby, and surprisingly, there were people in the lake swimming, but she didn't know there was a thief hidden in the tree. 11:15, the thief stole her bike away, while Mary was playing around happily. 11:20, Mary wanted to go back home, so she went to the tree where she left the bike, but she couldn't find it. She cried sadly, and then ran to a phone booth, made a call to the police