The most important thing to do ______ the pollution as soon as possible.

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问题 The most important thing to do ______ the pollution as soon as possible.

选项 A、are got rid of
B、is to get rid of
C、is get rid of
D、is for us getting rid of

答案C

解析 本题考查的是不定式作表语的情况。如果在主语中出现了do一词,则后面作表语的不定式省去to;如果前面出现的to do中动词不是do做,则后面的不定式要加上to。所以在这里要选不带to的C。
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