It () there yesterday,but it () there now.A.was;is B.wasnot;is C.is;wasnot

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It () there yesterday,but it () there now.A.was;is B.wasnot;is C.is;wasnot

It () there yesterday,but it () there now.A.was;is B.wasnot;is C.is;wasnot
It () there yesterday,but it () there now.A.was;is B.wasnot;is C.is;wasnot

It () there yesterday,but it () there now.A.was;is B.wasnot;is C.is;wasnot
应该选B. 两句中有BUT 说明前后应该是相反的.前一句的yesterday说明第一空要是昨天发生的事,要用过去式;第二句的Now说明这是现在的情况,要用一般现在时.