单项选择题

 It ______ longbefore we ______  the result of the experiment.
A.will not be…willknow  B.is…willknow
C.will notbe…knowD.is…know

A.A.
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ohn and I________ friends for eight years. Wefirst got to know each other at a Christmas party.But we_______ each other a couple of times before that.A.had been; haveseen B have been; have seenC.had been; hadseenD have been; had seen
A.A.
单项选择题
( style='font-size:12px'>北京卷 )31. – Why did you leave that position? - I __________ a betterposition at IBM. A.offer B.offeredC.amoffered D.was offered
A.   
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