可以这么说how long will it take to get there?下面是一些提问方式的总结how long, how often, how soon三者都可以译成“多久”。how long用来提问“多长时间”,对“一段时间的长短”提问时用,与延续性动词连用;how often用来提问某动作或状态发生的频率,对“一段时间内发生了几次活动”(always,usually, often, never或twice a day等表示频度的词或短语)提问时用;how soon用来提问某人要“多快”能做好某事,或某事要“多快”能完成,对“过多少时间(就能……)”(in短语)提问时用,常用于将来时。而how far意思是“多远”,对距离提问时用。例如: How long did you stay there? 你在那儿呆多久? How often do his parents let him watch TV? 他父母多久让他看一次电视? How soon will her husband come? 她丈夫多久会回来? How far is that? 那有多远http://cache.baidu.com/c?word=how%2Cfar%2Chow%2Clong&url=http%3A//www%2Elesun%2Eorg/english/html/2005%2D04/2830%2Ehtm&b=0&a=45&user=baidu------------------------How often? *“隔几分钟来一趟车”或者“隔多长时间打一次网球”等用于询问时间的间隔时。How often should I take this medicine? (这药一天吃几次?)Five times a day. (一天5次。)How frequently?U.S.A.是什么的缩写?What does USA stand for?What does USA stand for? (U.S.A.是什么的缩写?)It stands for the United States of America. (它是United States of America的缩写。)多长?How long? *询问距离、尺寸时间的长短,听到这样的提问,对方以具体数字回答。How long have you dated her? (你和她交往了多长时间?)About four years. (大概4年吧。)How long is her hair? (她的头发有多长?)Very long. (很长。)*不能用具体数字回答时,也可以用类似very long这样的话来回答。多早?How early?How early should we leave? (咱们多早出发合适?)Let's leave at 7∶30 am. (早晨7∶30吧。)*用How表示问“多……”的说法还有以下几种。How short? (多短?)How fast? (多快?)How far? (多远?)How quickly? (多快的速度?)How slowly? (〔速度、动作〕多慢?)How soon? (〔时间/期间〕多快?)How late? (〔时间/时刻〕多晚?)How much? (〔不可数〕多少?)How many? (〔可数〕多少?)How big/large? (多大?)How small/little? (多小?)暑假什么时候开始?