问题描述：
He is one of the boys who___here on time.He is the only one of the boys who___here on time.
A.has come;have come B.have come;has come C.has come;has come D.have come ;have come.请告诉我选什么,为什么?
A.has come;have come B.have come;has come C.has come;has come D.have come ;have come.请告诉我选什么,为什么?
问题解答：
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