a month do you do voluntary work ?-Twice a month. A. How longB. How many timesC. Ho

发布时间:2020-08-23 11:48:58

---      a month do you do voluntary work ?
---Twice a month.
A. How long
B. How many times
C. How much
D. How often

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A. How long
(答案→)B. How many times
C. How much
D. How often
解析:根据答语Twice a month“一月两次”可知,疑问词应该是问频率的,而在四个选项中D,但是在题干中已经有a month了,故D就是不正确的,How often表示“多长时间一次/几次”,相当于how many times +时间段,所以本题选B。而A表示“多长时间”,C表示“多少”,
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