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
搜题请搜索小程序“爱下问搜题”
-__________ has your friend been to the Great Wall?
-Twice.[ ]
A. How often
B. What time
C. How long
D. How many times
答案：D