--________ does your father visit your grandparents a week? –Once.

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

 

B

【解析】

试题分析：A. How often How often多久一次； B. How many times How many times多少次； C. How long多长时间；D. How soon多久，对将来的提问。联系下文一次可上文提问你爸爸一周几次看望你的爷爷奶奶，故选B.

考点：考查疑问词辨析。

 

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