may not与mustn't的区别?

may not与mustn't的区别 may can must need的区别及may not ,can't,mustn't,needn't的区别? may not/can't/couldn't/needn't/mustn't举例区别意思和用法 may not 与can't区别 mustn't与needn't的用法区别 can`t与mustn`t意义和用法的区别 may not 和 can't的区别 may的否定回答mustn't和can't有什么区别 May not/might not 和can’t的区别 May I come in? No, you ___. A. mustn't B. needn't C. may not may not与can't有什么区别? mustn`t 和needn`t的区别