“（）should we clean the library?”“Twice a week.” A.How many B.How much C.How long D.How often应选哪个?

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“（）should we clean the library?”“Twice a week.” A.How many B.How much C.How long D.How often应选哪个?
“（）should we clean the library?”“Twice a week.” A.How many B.How much C.How long D.How often
应选哪个?

“（）should we clean the library?”“Twice a week.” A.How many B.How much C.How long D.How often应选哪个?
D.How often.就像中文说的一样啊,C是How long,翻译成“我们打扫图书馆应该要多长时间?”.D翻译成“我们应该多久打扫一次图书馆?”.对应回答“一周两次”那肯定是选D

选D
对频率性的进行提问用How often

D
how often 对频率提问，意为“多久一次”

D 根据回答。一周两次
对做某事的“频率”，用 'how often‘

D 每周两次对频率提问用How often

Twice a week表示频率，用how often望采纳

D

从回答内容“每周两次”可以看出提问的内容是频次，因此为how often。

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