问题
选择题
--________ does your father visit your grandparents a week? –Once.
A．How often
B．How many times
C．How long
D．How soon
答案
答案：B
题目分析：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.