Now he doesn't regret___ objections at the meeting though nobody listened to him.A to raiseB to be raising C to have raisedD having raised答案是D

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Now he doesn't regret___ objections at the meeting though nobody listened to him. A to raise B to be raising C to have raised D having raised 答案是Dregret+doing表示對過去作過的事遺憾，這里用doing動(dòng)名詞的完成式，強(qiáng)調(diào)動(dòng)作“在會上提出反對意見”發(fā)生在主句謂語動(dòng)作之前，后一句didn' t listen 暗示，