are you staying in Beijing?----For a week.A. How muchB. How longC. How farD. When

问题补充：

--- are you staying in Beijing?

----For a week.

A. How much

B. How long

C. How far

D. When

答案：

A. How much

(答案→)B. How long

C. How far

D. When

解析：此题重点考查疑问词辨析，how much问多少跟不可数名词，也可问价格；how long多长时间，对一段时间进行提问；how far多远问距离；when当...时候，根据答语故选B