After listening to the teacher’s explanations, John ____ what he had done was wrong.A.was aware thatB.was being aware thatC.was nervous aboutD.had been nervous about
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A解析试题分析：考查形容词短语be aware that意识到，that引导的是宾语从句，be nervous about对…担心，about后面接宾语，句意：听完老师的解释，约翰意识到自己做的事情是错的。选A。考点：考查形容词词组
点评：平时学习的时候要把一些经常考查的形容词词短语进行归类总结，特别是同一个形容词有不同搭配，要在语境中进行区别。短语是高考的重点，一定要加强识记和辨析。做题时一定要结合上下文做题。