问题补充：
JackyCoffee, but now hemilk.
A. used to drink; is used to drinking
B. used to drinking; drinks
C. is used to drinking; used to drink
D. is used to drinking; is drinking
答案：
(答案→)A. used to drink; is used to drinking
B. used to drinking; drinks
C. is used to drinking; used to drink
D. is used to drinking; is drinking
解析：句意：Jacky过去常常喝咖啡，但是现在他习惯于喝牛奶。be used to doing sth 习惯于做……，used to do sth,过去常常做某事。故选A。
