题目内容

【题目】( ) A: __________ do you have a bath in winter?  B: Once three days.

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

【答案】B

【解析】句意:你冬天多久洗一次澡?三天一次。根据once three days三天一次,可知为频率,故答案选B.A项为多久,排除A; C项为多久,排除C; D项为多少,排除D.

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