问题
选择题
— do you write to your parents?
— Once a month. [ ]
A. How long
B. How often
C. How
D. How much
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— do you write to your parents?
— Once a month. [ ]
A. How long
B. How often
C. How
D. How much
答案：B