英语一般疑问句怎么改My sister often helps my mother cook dinner（改为一般疑问句）I go to school cook dinner?（改为否定句）I write to my elder sister three times a mouth.（对划线部分进行提问）（划线部分是three times a mouth） 求求你们啊.有赏

1. Does your sister often help your mother cook dinner?

2. 你的第二个句子本来就有问题吧。原句是I go to school and cook dinner. 否定句：I don't go to school and cook dinner.

3. 划线部分应该是three times a month.提问：How often do you write to your elder sister?

Does your sister often help your mother cook dinner?
I don't go to school cook dinner.
How often do you write to your elder sister ?
加油！不明白再问！如果帮到你，请采纳，谢谢！

1 Does your sister often helps your cook dinner?
2 I don't go to school cook dinner
3 How often do you write to your elder sister
回答也需要时间,也不容易,体谅一下,

1.Does my sister often help my mother cook dinner?
2.I don't go to school cook dinner.
3.How often do you write to my elder sister?