问题补充：
The Greens in Paris and now they in China. They like China.
A. used to live; are used to living
B. are used to living; used to live
C. use to live; used to live
D. used living; used to living
答案：
(答案→)A. used to live; are used to living
B. are used to living; used to live
C. use to live; used to live
D. used living; used to living
解析：此题重点考查be used to doing sth和used to do sth 两个句型结构的区别和意义。前者是习惯做某事，后者表示过去常常做某事，现在不做了。
