Choose the best answer which can plete the sentence.________ his car ________, he quickly dialed the police number.A.Discovered/stolenB.Discover/stolenC.Having discovered/stolenD.Having discovered/to steal
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C解析本题考查的是非谓语动词．首先，句子的主语是he，而discover的逻辑主语也是he，因此discover应该用ing形式．再者，his car为山discover的宾语，而steal与his car之间为动宾关系，因此要用过去分词形式．所以