问题
选择题
— __ has your friend been to the Great Wall?
—Twice.[ ]
A. How often
B. What time
C. How long
D. How many times
答案
答案：D
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— __ has your friend been to the Great Wall?
—Twice.[ ]
A. How often
B. What time
C. How long
D. How many times
答案：D