问题
选择题
I __ brushing my teeth twice a day.
A．am used to be
B．make it rule
C．used to be
D．have the habit of
答案
答案：D
搜题请搜索小程序“爱下问搜题”
I __ brushing my teeth twice a day.
A．am used to be
B．make it rule
C．used to be
D．have the habit of
答案：D