◎ 题干
There 's a teacher  _____ with your parents in the teachers' office.
A.is talking B.talksC.to talkD.talking
◎ 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“There 's a teacher _____ with your parents in the teachers' office.A.is talking B.talksC.to talkD.talking…”主要考查了你对  【不定式】【分词】【动名词】  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。