最佳答案:didn't you
最佳答案:yes,you can./no,you can't.yes,you must./no,you needn't.yes,you need(must)./no,yo
最佳答案:用must 提问时 根据情况 否定回答 是 needn't 不必 但也不是绝对不准用 mustn't 不允许 如mest we leave now? 我们必须现
最佳答案:肯定Yes,I'd love to.That's a good idea.Why not?否定Sorry,...I'd love to,but...
最佳答案:否定may用can't或mustn't肯定用can回答
最佳答案:肯定回答:yes,you can.否定回答:No,you can't希望能够帮到你.
最佳答案:情态动词有can (could), may (might), must, have to, shall (should, will (would), dare
最佳答案:may:yes,you mayno,you can'tmust:yes you mustno you needn't
最佳答案:Shall we go to the park?Sorry, I won'tSorry, I am afraid I can not.Sorry, I shal
最佳答案:not 一般是放be 动词 和 can 之后 如he is not happy.my key is not here.I can not do that.don