I take a bus to work, but now I riding a bike to work.
- A.used to; am used to
- B.am used to; used to
- C.use to; am used to
- D.used to; used to
答案
正确答案:A

used to do sth表“过去(常常)做某事”,be used to doing sth表“习惯做某事”。句意为“我过去常坐公交车去上班,但是现在我习惯骑自行车去上班”。根据句意可知第一空填used to,第二空填am used to,语意和语法都符合,故答案选A。

略
