Question

he likes drinking milk

Her son________drink Coke a lot，but now he likes drinking milk．（　　）

A. use to

B. used to

C. is used to

D. was used to

Answer 1

答案：B．
根据语境结合后面一句but now he likes drinking milk推测本句的句意是"她的儿子过去常喝可乐，但是现在他喜欢喝牛奶．"．表示"过去常常做某事"，用句式：used to do sth，故答案为B．