---Did you use to a bus to school?---Yes .But now I am used to a bike to school .A. take

问题补充：

---Did you use to a bus to school?

---Yes .But now I am used to a bike to school .

A. take , riding

B. taking , riding

C. taking , ride

D. taking . riding

答案：

(答案→)A. take , riding

B. taking , riding

C. taking , ride

D. taking . riding

解析：be used to sth习惯于某事;used to do sth过去常常做某事.句意：你过去常常乘公交车去学校吗？——是的，但是我现在习惯了骑自行车去学校。故选A。