The staff ________ chatting cheerfully during the coffee break when the boss came in.
A.wasB.wereC.have beenD.has been在线课程B
这句句子的意思是“当老板走进来时,员工们正热烈地讨论着。”从时态上来看,前半句应用过去进行时,而不是现在完成时,所以选项C和D均不对。而staff是集体名词,谓语动词用复数。
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The staff chatting cheerfully during the coffee break when the boss came in.A.wasB.wereC.have beenD.
编辑:chaxungu时间:2026-04-24 13:00:05分类:高中英语题库
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