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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 581

The lecture,__________ at 7: 00 last night, was followed by an observation of the moon with telescopes.

A.starting
B.being started
C.to start
D.to be started
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Thelecture,at7:00lastnight,was