题目内容
【题目】Susan used to________to school,but she is used to________to school now.
A.walk;take a bus
B.walk;riding a bike
C.walk;ride a bike
D.walked;took a bus
【答案】B
【解析】used to do sth.过去常常做某事;be used to doing sth.习惯于做某事。
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