◎ 题干
—What do you use computers to do?        
—They are useful.  For example, they can      _ sending e-mail.          
[     ]
A. use to
B. be used of
C. be used for
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—What do you use computers to do? —They are useful.For example, they can_ sending e-mail. [ ]A. use to B. be used of C. be used for…”主要考查了你对  【系动词】【动词短语】【介词】  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。