It was hard work carrying the bags.they were very heavy.袋子重是一个事实,为什么要用过去式?即为什么要用were而不是are?因为这些袋子过去重,现在还是重,将来也会重,是一种事实啥,又不是只是过去重.

来源:学生作业帮助网 编辑:作业帮 时间:2024/09/02 08:22:27
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