一 has your grandpa lived here? 一Since last year．
A. How 1ong
B. How often
C. How soon
D. How far
网友回答
(答案→)A. How 1ong
B. How often
C. How soon
D. How far
解析：How 1ong多长；How often 多久一次；How soon多久；How far多远。根据下文，自从去年以来。可知上提问的是时间长度，how soon一般表示将来的时间，故选A。