问题
选择题
— must I take this medicine every day?
—Three times a day. [ ]
A. How long
B. How often
C. How far
D. How soon
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— must I take this medicine every day?
—Three times a day. [ ]
A. How long
B. How often
C. How far
D. How soon
答案：B