问题补充:
— do you write to your parents?—Every day.
A. How long
B. How soon
C. How often
D. How far
答案:
A. How long
B. How soon
(答案→)C. How often
D. How far
解析:根据此题的回答Every day可知是在问频率所以用How often“多久一次”来提问。How long 应回答长度; How soon 应回答时间; How far应回答距离。选C。