现在是4点20,李老师a quarter of an hour ago复习完书本,她几点复习完的

现在是4点20,李老师a quarter of an hour ago复习完书本,她几点复习完的 8点45分是quarter to nine还是a quarter to nine 3点45是“a quarter to four还是quarter to four a quarter after one和a quarter past one是一样的意思吗?1点15 英语时间话说,a quarter to eight 是几点来着? 7点15,和7点45 英语是啥来着,用quarter表达. quarter 已经是一刻钟的意思了,为什么a quarter to seven.前面还要加一个a呢?回答要详细点、不然我不能理解 12点45分 可以是 twelve forty-five 或者 a quarter to one那可不可以是 fifteen to one?或者说 有quarter就不能用fifteen了?quarter完全把fifteen取代了吗? a quarter after eight 是几点钟? 7点一刻a quarter past seven可以说成seven and a quarter吗? Ten past seven是7点过10分吗past（表示半点前）Ten past seven.half past eight.Ten to seven.Twenty to four.A quarter past one.a quarter to four.a quarter past nine.各是表示几点?// a quarter怎么翻译 a quarter to a quarter past a quarter after At a quarter past a quarter past a quarter to two. a quarter to