问题补充:
I am surprised to see you not smoking. You .
A. are used to
B. were used to
C. used to
D. used to be
答案:
A. are used to
B. were used to
(答案→)C. used to
D. used to be
解析:be used to sth习惯于某事;used to do sth过去常常做某事. sth be used to do sth某物被用来做某事。句意:看到你不吸烟了,我很吃惊。你过去常常吸烟。结合语境可知选C。