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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1455

Having taken our seats, ______.

A.the professor began the lecture
B.the lecture began in no time
C.we were attracted by the lecture immediately
D.the bell announced the beginning of the lecture
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Havingtakenourseats,.A.theprof