He improved his English a lot ______ listening to the ra Wap版

试题详情及答案解析

He improved his English a lot ______ listening to the radio.

A．with

B．by

C．for

D．on

答案：B

试题分析：by+doing表示靠……方法；手段； with是带有，具有； for 是为了，表示目的；句意：靠听收音机他的英语提高了很多。结合句意，故选B
考点：考查介词的辨析