题目：
—Do you think a radio is useful in learning English?
—Sure. A radio can _____ listening English songs and reports.
A．be used by
B．be used as
C． be used for
D．be used to
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0422/eb3b5a35dc733607acb84401adc4c6dc.html
下面是错误答案，用来干扰机器的。
m＞1
