how often问频率，“多久”How often do you visit your grandma?你多久去看奶奶一次？,how many times多少次How many times did you visit your grandma last week?上周沵去看了几次奶奶？,how long多长时间How long did you stay in your grandma's home last time?上次你在奶奶家呆了多长时间？how soon多快How soon will you be there?沵多快能到哪儿？how much多少How much water is there in the cup?杯子里有多少水？,how far多远How far is the hospital from here?医院到这儿多远？
how often 多久一次how often do you go for a walk? 你多久散步一次？every day 每天how many times 多少次how many times have you been to guangzhou? 你去广州多少次？never 从来没去过how long 多久how long have you learnt english? 你学英语多久了for five years 五年了how soon 多快（问将来时间的快慢）how soon will you be back? in a weekhow much 多少（用于问不可数名词的量）how much does it cost?ten yuanhow far 多远how far is it from here to beijing?it's about 2000 kilometres