(单选题)

53.（）

A.on

B.at

C.with

D.behind

参考答案：A

参考解析：

考查固定搭配。句意：通过收音机进行播音时，他们早已习惯于代表观众去看。on可意为by means of sth.，using sth.，意为“通过，使用，借助于，如on TV/the Internet在电视/互联网上。代入文中，on radio指收音机评论员通过收音机工作，作状语修饰work，既符合文义，又能构成搭配。B、C、D构不成搭配。故选A。

知识点：有选项完形填空英语专业基础知识完形填空教师招聘-小学英语

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53.（ ）

53.（）