Hurry!  The train ______.You know it_________at 8:30 am.
A．leaves ; leavesB．is leaving ; leaves
C．leaves; is leaving D．is leaving; is leaving
B
這題考查時態(tài)的用法：第一空用現(xiàn)在進行時表示一般將來時，第二空用一般現(xiàn)在時，表示（按時刻表）將要。句意是：快點，火車要走了，你知道火車上午8：30出發(fā)。選B。
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