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My sister _____(be) a singer since she left school.这个空应该填什么呢~要原因哦··

分类: 作业答案 • 2021-12-31 11:02:16

问题描述：

My sister _____(be) a singer since she left school.这个空应该填什么呢~要原因哦··

答

has been
后面有since,用完成时