对划线部分提问:1、They must sweep the floor today 2、he had to take his brother to the doctor‘s1、today划线2、the doctor‘s划线

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对划线部分提问:1、They must sweep the floor today 2、he had to take his brother to the doctor‘s1、today划线2、the doctor‘s划线
对划线部分提问:1、They must sweep the floor today 2、he had to take his brother to the doctor‘s
1、today划线
2、the doctor‘s划线

对划线部分提问:1、They must sweep the floor today 2、he had to take his brother to the doctor‘s1、today划线2、the doctor‘s划线
when must they sweep the floor?
where did he have to take his brother to?