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It seems oil______from this pipe for some time. We’ 11 have to take the machine
It seems oil______from this pipe for some time. We’ 11 have to take the machine
游客
2023-10-18
63
管理
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、leaked
C、is leaking
D、has been leaking
答案
D
解析
现在完成进行时表动作已经持续了一段时间并且还在进行，与for some time相对应。
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