问题
选择题
—_____do they play foodball?
—Once a week.[ ]
A. How long
B. H
ow often
C. How far
D. How soon
答案
答案：B
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—_____do they play foodball?
—Once a week.[ ]
A. How long
B. How often
C. How far
D. How soon
答案：B