◎ 题干
Often, when he ______ something that ______ him, he wasted his time drawing some little pictures.
A.should be doing; gave
B.should have been doing; was given
C.should do; was given
D.should have been doing; had given
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Often, when he ______ something that ______ him, he wasted his time drawing some little pictures. A.should be doing; gaveB.should have been doing; was givenC.…”主要考查了你对  【虚拟语气】【情态动词】  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。