问题描述：
几道英语选择题.急~~!The man hung up his telephone ______ I could guess who he was.
1.The man hung up his telephone ______ I could guess who he was.
A. when B.since C.not until D.before
2.The ______ he has over the others is that he has been to Harvard University.
A.advantage B.effect C.affect D.interest
急求~~!答案及理由.好的加分.谢谢!
1.The man hung up his telephone ______ I could guess who he was.
A. when B.since C.not until D.before
2.The ______ he has over the others is that he has been to Harvard University.
A.advantage B.effect C.affect D.interest
急求~~!答案及理由.好的加分.谢谢!
问题解答：
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