题目内容

The machine has been used many years. It’s no wonder that it doesn’t work well________.

A.regularly B.constantly C.occasionally D.frequently

C

解析试题分析:A. regularly定期地,B. constantly 连续地,不断地,C. occasionally偶尔地,D. frequently经常地,句意:这个机器已经被使用了很多年,难怪它偶尔不工作了。所以选C。
考点:考查副词辨析

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