—Tomorrow ________ my birthday. I'd like you and Jane to e.—Whether she ________ free I'm not sure at the moment.A.is; will beB.is; isC.is going to be; isD.will be; is
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A解析第一空可用is或will be，但不能用be going to be；第二空whether引导的从句表将来情况，如果用它作状语要用一般现在时，用作名词从句用一般将来时。