问题描述：
He’ll have to spend ____ writing hie report here.
A.one day or two days; B.one day or two; C.a day or two days ; D.a day or two选D为什么不选A啊
A.one day or two days; B.one day or two; C.a day or two days ; D.a day or two选D为什么不选A啊
问题解答：
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