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He fail to catch the train.He fail to lift the rock in spite of all his exertion.请问这两句话fail为何不加s?

分类: 作业答案 • 2021-12-28 16:44:09

问题描述：

He fail to catch the train.He fail to lift the rock in spite of all his exertion.请问这两句话fail为何不加s?

答

因为是错的.应该加ed,过去时,he failed to ...加s一般时有点别扭