--- has your brother studied in New York?
---For two years.
A. How far
B. How often
C. How soon
D. How long
网友回答
A. How far
B. How often
C. How soon
(答案→)D. How long
解析:考查疑问词:A. How far多远,B. How often多久一次,C. How soon 多快D. How long多长时间,根据答语可知是个时间段,它常用来回答以how long引导的特殊疑问句。选D。