---Do you think he will do me a favor?---As far as I know, he is the last one ___ others. He ___ be prepared to give you a hand, thoughA.to help, mightB.helping, mustC.to help , canD.helping, should
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A解析考查不定式用法和情态动词用法。当名词有序数词修饰时可以用不定式修饰。根据前半句话可知他很少帮助别人，可知第二空为might，他可能愿意帮助你。句意：据我所知，他很少帮助别人。然而，他有可能会帮你。