2. 外语
  3. It seems oil ______ from this pipe for some time. We’ 11 have to take the machine apart to put it right.

It seems oil ______ from this pipe for some time. We’ 11 have to take the machine apart to put it right.

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问题 It seems oil ______ from this pipe for some time. We’ 11 have to take the machine apart to put it right.
选项 A、had leaked
B、is leaking
C、leaked
D、has been leaking
答案D
解析 该句中时间状语for some time表明这个动作已进行了一段时间，而句中的谓语动词 seems和will have to take说明leak这个动作还在进行，可能还会延续下去，故需用现在完成进行时。  
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本试题收录于： B类竞赛（英语专业本科专科）题库大学生英语竞赛（NECCS）分类
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B类竞赛（英语专业本科专科）

大学生英语竞赛（NECCS）

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