题目内容

When the teacher came in, he saw some boys _______ behind Daniel, _______ the computer games.


  1. A.
    sit, watching
  2. B.
    sitting, watching
  3. C.
    sit, to watch
  4. D.
    sitting, watched
B
第一空考查的是see sb doing sth,表示看见某人正在做某事,后一空为动词的现在分词作时间状语,故选答案为B
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