Question

— 　　　 do you have an Art Festival in your school? —Once a year. A．How long B．How often

— 　　　 do you have an Art Festival in your school? —Once a year. A．How long B．How often　 C．How far D．How soon

Answer 1

B

试题分析：句意：——你们学校多久举办一次艺术节。—— 一年一次。从回答中可知道问的是频率，多久一次，故选B。 how long多久，how far多远，how soon多快。