—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:C
题目分析:句意:上句问你认为收音机在学英语方面有用吗?下文是的,收音机能用来听英语歌曲和报告。be used as 被当作……用be used for 被用来干……=" be" used to do be used to doing 习惯做……="get" used to be used by …被用来做什么?it's no use doing sth 做……是没用的。故选C