◎ 题干
Don't be too hard _____ the boy; he didn't mean _____ it.
[     ]
A. at; doing
B. on; to do
C. on; doing
D. for; to do
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Don't be too hard_____ the boy; he didn't mean_____ it. [ ]A. at; doing B. on; to do C. on; doingD. for; to do …”主要考查了你对  【介词和介词短语】【不定式】  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。