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
答案
答案：B
考查固定搭配。How long问多久How often问频率，多久一次；；How far问多远；How问怎样。根据Three times a day应是问频率，所以选B。
搜题请搜索小程序“爱下问搜题”
