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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 460

Tom __________ into the house when no one __________.

A.slipped; was looking B.slipped; had looked
C.had slipped; looked D.was slipping; looked
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Tomintothehousewhennoone.A.sli