His teacher told him that since his parents were working abroad ,either

His teacher told him that since his parents were working abroad ,either
27.His teacher told him that since his parents were working abroad ,either his grandparents or one of his uncles ______ allowed to come to the parents’ meeting .
A.was B.were C.are D.is
选什么?为什么?
英语人气:611 ℃时间:2019-08-19 18:41:06
优质解答
这里是一般过去式的被动语态 从told 看出来
one of +复数名词 视为单数 句中含义为其中一个叔叔
综上所述 过去时态 单数 所以选A
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