You must do you are homework on time改为祈使句 并讲出为什么,

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You must do you are homework on time改为祈使句 并讲出为什么,
You must do you are homework on time改为祈使句 并讲出为什么,

You must do you are homework on time改为祈使句 并讲出为什么,
You must do you are homework on time,needn't you?

1、must表示“必须”时,疑问部分用mustn’t.如:
We must keep
it as a secret, mustn’t we? 我们必须对此保守秘密,是吧?
2、must表示“有必要”时,疑问部分用needn’t
.如:
You must
leave a little earlier,needn’t you? 你有必要早点出发,对吗?
3、must表示“一定、肯定”等推测意义时,疑问部分一般不用情态动词,而和must后的动词相一致.如:
He must play basketball very well, doesn’t he? 他篮球肯定打得很好,是吗?