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She has been in Oceania for one and a half years.这里为什么不能改since one and a half years ago.

分类: 作业答案 • 2022-01-09 18:03:51

问题描述：

She has been in Oceania for one and a half years.这里为什么不能改since one and a half years ago.

答

since 不能和 ago 一起用