— are you going to stay in Japan?— For two weeks.A. How longB. How soonC. How oftenD. Whe

问题补充：

— are you going to stay in Japan?

— For two weeks.

A. How long

B. How soon

C. How often

D. When

答案：

(答案→)A. How long

B. How soon

C. How often

D. When

解析：本题主要考查疑问词辨析，How long多长时间；How soon 多久用于将来时； How often 多久一次；根据答语For two weeks表一段时间，因此选A