- are they staying here? -Two weeks. A. How long B. How soon C. How often D. How

—_______are they staying here?

—Two weeks.

A. How long B. How soon C. How often　 　 D. How far

试题答案

A

Two weeks是简略答语，相当于They are staying here for two weeks。How long多久；How soon过多久能完成，多快(指时间)；How often提问频率；How far多远。