问题补充:
— will your father be back?
—In two months.
A. How long
B. How soon
C. How often
D. How many
答案:
A. How long
(答案→)B. How soon
C. How often
D. How many
解析:疑问代词辨析。how long 多长时间 how soon 多久才会 how often 多久一次 how many 多少(修饰名词复数)。根据答语“两个月后”可知问题“你爸爸多久才会回来?”故选B。