Question

【题目】Aron used ________ a hike to school, but now he is used to _______ .
A.to ride; walk
B.riding; walking
C.riding; to walk
D.to ride; walking

Answer 1

【答案】D
【解析】考查短语used to do sth 意为“过去常常于某事”和 be used to doing sth“习惯做某事”。句意：艾伦过去常常骑自行车上学，但是现在他习惯了步行。根据句意可知选D。