问题补充:
-- is your house from the factory? --It’s about twenty minutes’ walk.
A. How long
B. How soon
C. How often
D. How far
答案:
A. How long
B. How soon
C. How often
(答案→)D. How far
解析:本题考查疑问词的用法。Howsoon还要多久,How long示时间的长度,B项表示;How far表示距离“多远” How often表示频率。根据答语“步行大约二十分钟。”可知答案。