Question

【题目】- do you watch TV?

-Once a week, only on Sunday evenings.

A. How long B. How much C. How often D. How many

Answer 1

【答案】C

【解析】句意：——你多久看一次电视？——一周一次，只有在星期天晚上。根据Once a week,可知此处对频率提问，故用how often。故选C。