问题
单项选择题
A: People （）go to the markets to buy living chickens to eat, but now they have to change that habit.
B: That’s true. But I think everything will be better.
A. used to
B. are used to
C. use to
D. are used
答案
参考答案：A
解析：
used to表示“过去经常干……”，he used to表示“习惯……”，be used for表示“用……做……”，所以选A。