题目内容
【题目】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
【答案】A
【解析】句意:报告于昨晚七点开始,报告之后便是用望远镜观察月球。starting现在分词作定语。
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