one hour 与 a hour 有什么区别

one hour 与 a hour 有什么区别 a one -hour还是an one-hour a half hour one hour对不对? 冠词 an one-hour 还是a one-hour 是a one-hour ducumentary还是an one-hour documentary One hour ago 和one hour later.有什么区别? One and a half an hour 和An hour and a half 有什么不同 half an hour 与 one half hour区别 an hour one houran hour 与one hour的区别是什么 on-hour one-hour ride one and a half hour 中hour是否加s one and a half hours 还是hour One and a half______a.hour b.hours one month and a half和one and a half month有区别吗?还有one hour and a half和one and half an hour哪个对? ______ and I'' get the work finished.A.Have one more hour B.One more hour C.Given one more hour D.If I have one more hour it took them ____to visit our school.a one and a half hour b one hour and a half hour half an hour 和a half hour有什么区别? in one's hour