摘要：31．It seems oil from this pipe for some time, we’ll have to take the machine apart to put it right. A．had leaked B．is leaking C．leaked D．has been leaking
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It seems oil _____from this pipe for some time, we’ll have to take the machine apart to put it right.
A．had leaked B．is leaking C．leaked D．has been leaking
查看习题详情和答案>>It seems oil____from this pipe for some time, we’ll have to take the machine apart to put it right.
A.had leaked B.is leaking
C.leaked D.has been leaking
查看习题详情和答案>>It seems oil _____ from this pipe for some time. We'll have to take the machine apart to put it right.
A. had leaked B. is leaking C. has been leaking D. leaked
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