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It seems oil ______ from this pipe for some time. We’ll have to take the machine
It seems oil ______ from this pipe for some time. We’ll have to take the machine
游客
2023-10-27
25
管理
问题
It seems oil ______ from this pipe for some time. We’ll have to take the machine apart to put it right.
选项
A、is leaking
B、had leaked
C、leaked
D、has been leaking
答案
D
解析
本句时间状语for some time表明这个动作已进行了一段时间，而句中的seems和will have to take说明leak这个动作还在进行，而且可能还会延续下去，故用现在完成进行时，因此D正确。
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