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

发布时间：2020-08-17 11:08:48

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

网友回答

A. regularly
B. constantly
(答案→)C. occasionally
D. frequently
解析：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。
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