Question

---_______do you send e-mails to your pen friend? ------Once a month. A．How long B．Ho...

---_______do you send e-mails to your pen friend? ------Once a month. A．How long B．How far C．How much D．How often

Answer 1

D

试题分析： 句意：你多久给你的笔友发一封电子邮件？一个月一次。How long多长；How far多远；How much多少（后跟不可数名词）；How often 多久。故选D。  考点: 考查疑问词的用法。