题目内容
【题目】The children and the old men must be when they cross the street. （ ）
A. careB. careful
C. carefullyD. carefuly
【答案】B
【解析】
略
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题目内容
【题目】The children and the old men must be when they cross the street. （ ）
A. careB. careful
C. carefullyD. carefuly
【答案】B
【解析】
略