问题
选择题
---____do you go to the park ? ---Once a month .
A．How long
B．How often
C．How many
D．How much
答案
答案：B
题目分析：句意：你多久去公园一次？一人月一次。how often问频率，how long问长度或者时间多久，how many问数量，how much问价格。故选B.
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