问题
选择题
--You speak English so well. ______ have you learned English?
--For 5 years.
A.How many
B.How long
C.How often
D.How far
答案
答案:B
疑问词辨析。How many多少个; How long多长; How often 多久一次; How far多远。根据答语可知询问的是一段时间,故选how long。选B。