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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1570

He was observed __________ into the house and help himself to what he liked before the owner came back.

A.to slide B.slide
C.sliding D.slid
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Hewasobservedintothehouseandhe