◎ 题干

I couldn’t help but_____very concerned about his illness when I heard he was in hospital because of heart disease.
A.to feelB.feelC.feelingD.to have felt
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“I couldn’t help but_____very concerned about his illness when I heard he was in hospital because of heart disease. A.to feelB.feelC.feelingD.to have felt…”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。