—What have you been busy with these days?—I ______ that the speech contest has been brought forward, so I ______ for it.A.was informed; have been preparingB.have informed; am preparingC.informed; have preparedD.was informed; prepared
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A解析考查时态。根据句意可知我被通知演讲比赛被提前是过去发生的事情，所以用过去时。从被通知开始我就一直在准备，这个动作持续到现在，所以使用现在完成进行时。句意：—这些日子你在忙什么？—我被通知演讲比赛已经被提前了，所以我一直在为之做准备。