---do you improve your listening?---I improve itlistening to tapes.A. How; withB. What; by

问题补充：

---do you improve your listening?

---I improve itlistening to tapes.

A. How; with

B. What; by

C. How; by

D. What; with

答案：

A. How; with

B. What; by

(答案→)C. How; by

D. What; with

解析：句意：你怎么提高你的听力？我通过听磁带来提高听力。How怎么样；what 什么；by doing sth,通过做某事，表示方式方法；with有，结合语境故选C。