It seems the roof ______ (leak) for some time. We'd better call in the repairman.
【正确答案】：has been leaking
【题目解析】：填has been leaking
中文意思：管子漏油好像已经有一会儿了。我们最好叫修理工来。
It seems the roof ______ (leak) for some time. We'd better call
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