题目内容

________ your composition carefully, some spelling mistakes can be avoided.
A．Having checkedB．CheckingC．If you checkD．To check
C

试题分析：考查句子成分：非谓语动词作状语，其逻辑主语必须是句子主语，而这句话的逻辑主语是some spelling mistakes不可能是check的主语，所以不能用非谓语动词，只能用条件状语从句，句意：如果你仔细检查你的作文，一些拼写错误就会避免，正确答案为C.
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