My sister has to work on weekends.(改为一般疑问句）
问题描述：
My sister has to work on weekends.(改为一般疑问句）
答
Does your sister have to work on weekends?
答
My sister has to work on weekends
Does your sister have to work on weekends?
对have to的疑问句助动词用do
有不会的可以再问我
答
Does my sister have to work on weekends?
答
does my(your) sister have to work on weekends?
答
Does your sister have to work on weekends?
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