题目内容
---________ do you water these flowers? --- Once a week.
A.How soon | B.How often | C.How long | D.How much |
B
根据答语内容- Once a week.,可知问句的特殊疑问词how often,故选B
故用B
故用B
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题目内容
A.How soon | B.How often | C.How long | D.How much |