— will your mother come back?— In two days.A. How oftenB. How longC. How soonD. How far

问题补充：

— will your mother come back?

— In two days.

A. How often

B. How long

C. How soon

D. How far

答案：

A. How often

B. How long

(答案→)C. How soon

D. How far

解析：通过答语In two days. “两周以后”可以判断本句是问多久以后，表示将来的时间段， How long “多长时间”，How soon“多久”‘How often“多久一次”询问频率。答案应选C。