—________do you eat junk food?  —Once a week.A． Wap版

试题详情及答案解析

—________do you eat junk food? —Once a week.

A．how long	B．how soon
C．how much	D．how often

答案：D

试题分析：句意：--你多久吃一次垃圾食品？--一周一次。How long多长时间；How soon多久以后；How often多久一次；How much多少钱。结合句意，故选D
考点：考查疑问词的用法。