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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1319

While we were running on the playground, Jack suddenly stopped____ and lay on the ground,so we all stopped_____ what was wrong with him.

A.to run; to see B.running; seeing
C.running; to see D.running; see
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Whilewewererunningontheplaygro