when does it reach the end of time for which it can be used?这句话的意思?后面这个从句for which it can be used是什么意思?

when does it reach the end of time for which it can be used?这句话的意思?后面这个从句for which it can be used是什么意思? When does train reach the station? Please go and ______.A. find it outB. find out itC. look for itD. find it When does it rain money? When we reach the station it will be ok! 英语翻译It's a sucky life and just when you think it can't suck any more it does 英语翻译It feels good when they reach up to scratch.（说猫的事）reach 问一个英语句子的语法现象When does it reach the end of the time for which it can be used?我想知道它什么时候到使用的最后期限.其中这个for which 把我给搞糊涂了, When does the train __ the station?(arrive at get to reach)应选哪个啊? 请帮翻一下when does it rain?RT when does it rain money脑筋急转弯 it does not add up to when I don't know ( ) A.when the train will reach B.when the train will arrive 根据条件来填空It's ( ) Day today.用:Children's Children Childrens' Children'( )play ball here.用:Not Don't No Can't( )your appointment?It's on Sunday.用:What is what does When is When does Does it matter much ____ the sales manager won't attend the meeting tomorrowif what when that don't forget to call me when youA.reach B.arrive C.reach to D.get 说明理由 It doesn't leave for another hour.原文：——When does your flight leave?——It doesn't leave for another hour. She didn't reach the top of the mountain.Her brother didn't reach it,either.合并为简单句. when does it usually start?回答it 是 春节