求解释及语法分析：But isn't the packaging essentially they're ought to sell more powder?这是星火英语6级听力题源720题的一个长对话.根据原文,可以猜测出大概意思是：洗衣粉外包装上的使用说明（多少衣

求解释及语法分析：But isn't the packaging essentially they're ought to sell more powder?这是星火英语6级听力题源720题的一个长对话.根据原文,可以猜测出大概意思是：洗衣粉外包装上的使用说明（多少衣 but it is impossible isn't it? i sorry.but isn't my thingks am not,aren't,isn't,can't,don't,doesn't.的区别及用法. He isn't your father,but your mother's.Who is he?速求! 英语翻译but it isn t hers.lt s mine!it isn t hi s mine! That dress looks beautiful.But it isn't _e____ There isn't much rice,but there's very little but the everything is beautiful,isn't is? Money isn't everything.but no money no everything. 可他一点也不累,but he isn't tired____ ____, No,there isn't any,but there is some beer. Maybe I in your heart isn't so important.BUT But that's not worth ..isn't it? NO,there isn't.But there()some books But his wife isn't very lucky是什么时态? But there isn't enough money in my w... I speak Chinese,but Mary______.A.doesn't B.don't C.isn't