◎ 题干
—It’ s getting dark. Has Mr. Johnson finished        his house?
—I have no idea,but this morning he was painting it.
A.to paintB.painting
C.having paintedD.to have painted
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—It’ s getting dark. Has Mr. Johnson finishedhis house?—I have no idea,but this morning he was painting it.A.to paintB.paintingC.having paintedD.to have pai…”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  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。