How soon...?/How long...?/How far ...?/How often...?分别怎样如何回答？

How soon...? 回答:In 2 days.两天后
How long...? 回答：For 2 years.两年了
How far ...? 回答：2 kilometres.两千米
How often...? 回答：Twice a week.一个星期两次
例：How soon will the book be over?--In 2 days.
How long have you been here?--For 2 years.
How far is your home from here?--2 kilometres.
How often does you do sports?--Twice a week.

第一个是多久~连将来时~
第二个是多长时间
第三个是多远(路程)
第四个是多常~(指频率)