题目内容
将括号中单词的适当形式填入空格内。
Uncle Zhang cleans the streets very carefully early in the morning. He's a good ________. (clean)
答案：cleaner
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题目内容
将括号中单词的适当形式填入空格内。
Uncle Zhang cleans the streets very carefully early in the morning. He's a good ________. (clean)