摘要： -Can I have a talk with you at about 4 this afternoon, Mr. Black? -All right, I will have come back from a conference by then, and I you. A. will wait for B. will be waiting for C. will have been waiting for D. am waiting for

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— Can I have a talk with you at about 4 this afternoon,Mr Black?
— All right,I ________ from a conference by then.I will be waiting for you.
[      ]

A. will have come back  
B. will come back
C. have come back
D. will be coming back

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