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Sure.We ___friends since ten yeara ago. A.became B.have been C.were D.become 注:求解析

分类: 作业答案 • 2021-12-19 19:49:03

问题描述：

Sure.We ___friends since ten yeara ago. A.became B.have been C.were D.become 注:求解析

答

b 现在完成时,过去的动作持续到现在