问题
选择题
My father smoke heavily, but now he doesn't smoke any more. [ ]
A. use to
B. was used to
C. used to
D. was used
答案
答案：C
搜题请搜索小程序“爱下问搜题”
My father smoke heavily, but now he doesn't smoke any more. [ ]
A. use to
B. was used to
C. used to
D. was used
答案：C