didn't need to和和need't have done什么区别?

didn't need to和和need't have done什么区别? didn`t need to do 和need not to do区别 didn`t need to do 和need not to do区别 needn't have done和didn't need to do 有什么不同? didn't need to do 与needn't have done 的区别和相同点 need和 need to 的区别 need和need to有什么区别 need to和need区别是什么? 实义动词什么时侯用,情态动词,needˊt do和does＇t need to do区别 need do和need to do区别 needn't 和 don't need to 有什么不同? need t和don t have to的区别 why didn't you go to the meeting?比because I didn't need to go to the meeting.更简单的回答如果问题是:why didn't you go to the meeting?和because I didn't need to go to the meeting.同样的意思的最简回答是什么? don't need to 和 have to 是什么关系 need not to do 和don‘t need to do,哪个对? 和need 有关的高中英语单选题It was really tiring for me to stand in the queue for two hours to get the G-train ticket.-----You ____.you could have got online.A .needn't have B.needn't C.didn't need to D.didn't need to have1.2.ABCD各有什 为什么They didn't need to help.不对? need not 和 don't have to 的区别 you didn't need to tell him the news中的to tell可否改成telling?用to tell 和telling有什么区别吗？