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I ______ him in time, otherwise he would have fallen off the bike.
A.had supportedB.supportedC.have supportedD.support

答案
B
解析
考查虚拟语气。主句是I supported him in time,是一般过去式,would have fallen 是对过去的虚拟。句意为:要不是我支撑着他(过去),他早就掉落边缘了(在我支撑他之前)。
核心考点
试题【I ______ him in time, otherwise he would have fallen off the bike.A.had supporte】;主要考察你对一般现在时等知识点的理解。[详细]
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