Question

－_____do you go to the library?
－Once a week.

A．How long

B．How soon

C．How often

D．How many times

Answer 1

C

试题分析：通过答语Once a week“一周一次”可以判断本句是问频率的，答案应选C。How long “多长时间”，How soon“多久”‘How many times“多少次”
点评：应注意区分特殊疑问词的用法，特别是how引导的特殊疑问词。