One day , while Mary was working , her son Tim came to talk to her every a (去掉a)few minutes. Suddenly, Mary got an idea. She showed a map of the world to Tim. Then she cut them (改为it)into pieces and told Tim (加上to)put the map together again. She thought this would keep Tim busily (改为busy)for a long time. However, 4 minutes later, Tim excitedly told Mary he has (改为had)finished the task. Mary was surprising (改为surprised)and asked the boy what(改为how) he had done it so quickly. Tim said, "There was(改为is) a picture of a man on the other sides (改为side)of the map.So I just turned it over or(改为and) put the man together."
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