◎ 题干
It was _____ computer games that cost the young man a lot of precious time that he ought ____ on
his lessons.
[     ]
A. to play, to be spending
B. playing, to spend
C. played, to have spent
D. playing, to have spent
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It was _____ computer games that cost the young man a lot of precious time that he ought ____ on his lessons.[ ]A. to play, to be spending B. playing, to spen…”主要考查了你对  【动名词】【虚拟语气】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。