问题
选择题
—_______ do you have a Music Festival at your school?
—Once a year.[ ]
A. How soon
B. How often
C. How long
D. What time
答案
答案：B
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—_______ do you have a Music Festival at your school?
—Once a year.[ ]
A. How soon
B. How often
C. How long
D. What time
答案：B