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用过去分词或过去分词短语完成句子
The textbooks ________(为中国学生编写的)are very wonderful．
________(污染的水)is unfit to drink．
The foreigner often buys daily goods ________(中国制造的)．
The work can be done only by the ________(训练有素的人)．
Have you read the book ________(郑渊洁写的)．