题目内容
【题目】The machine has been used for man years. It’s no wonder that it doesn’t work well __________.
A. regularly B. constantly
C. frequently D. occasionally
【答案】D
【解析】
试题分析:考查副词的使用及句意的理解。句意:这台机器已经被用过好多年了,难怪它偶尔会不好好运转。A. 有规律地; B. 不断地;C. 频繁地; D. 偶尔地,故D正确。
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