hi,luck,you look tired.l'm really tired,because l( )the liveing room all day.a.paintedb.had painted c.have been painted d.have been painting

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hi,luck,you look tired.l'm really tired,because l( )the liveing room all day.a.painted
b.had painted c.have been painted d.have been painting

D 这是现在完成进行时的表达,表示动作一直在进行.
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D
现在完成进行时，是英语中，动词的一种基本时态，其构成为：主语+助动词（have/has）+been+动词的现在分词+其他成分。其表达的意思有两种：1.表示从过去某时开始一直持续到现在的动作，并且还将持续下去。2.表示在说话时刻之前到现在正在进行的动作
就是paint这个动作很有可能持续下去 。。。所以选D...

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D
现在完成进行时，是英语中，动词的一种基本时态，其构成为：主语+助动词（have/has）+been+动词的现在分词+其他成分。其表达的意思有两种：1.表示从过去某时开始一直持续到现在的动作，并且还将持续下去。2.表示在说话时刻之前到现在正在进行的动作
就是paint这个动作很有可能持续下去 。。。所以选D

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