Tony used to to school but he is used to to school now.A. walk; taking a bus B. walked; t

问题补充：

Tony used to to school, but he is used to to school now.

A. walk; taking a bus B. walked; took a bus C. walk; take a bus

答案：

解析：词义辨析。Used to do 是“过去常常干某事”；be used to doing是“习惯于干某事”。