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究竟是thirty percent of them is water还是thirty percent of them a

来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:综合作业 时间:2024/05/09 08:29:49
究竟是thirty percent of them is water还是thirty percent of them are water 为什么
另外 如何判断类似句子中of后面的be是单数还是复数
究竟是thirty percent of them is water还是thirty percent of them a
water不可数 是 单数 用is
如果后面是可数名词用are
再问: 如果是three quaters of fruit is bad还是three quaters of fruit are bad 为什么
再答: 我觉得就看修饰的名词 如果可数 用 is 如果不可数 用are