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itseemsoil_____fromthispipeforsometime,we'llhavetotakethemachineaparttoputitrightA.hadleakedB.is
题目内容:
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
我选C错了,请问我错在哪了?优质解答
D
for some time表示动作持续一段时间 用现在完成进行时
A.had leaked B.is leaking C.leaked D.has been leaking
我选C错了,请问我错在哪了?
优质解答
for some time表示动作持续一段时间 用现在完成进行时
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