8点45分是quarter to nine还是a quarter to nine

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 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? 不明白为什么单单a quarter to four就能表达3点45分? 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. 为什么9点45是it's quarter to ten.To 在句子里充当的含义是,为什么9点45是it's quarter to ten. To 在句子里充当的含义是, 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?// nin quarter to quarter to quarter to 8点5分用英语怎么说明天要交急.要用a quarter........... 下面分别是几点 eleven twenty、three to three、a quarter past two、half past one、twenty to sevensix past six、eight to eight、ten to one、five past nine、a quarter to four 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 英语6点45的表达哪个对如题 three quarters past six quarter后加还s a quarter to seven lt's quarter to eleven几点 12:45一般是念 a quarter to one,那可以念twelve forty five吗? a quarter to