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All___you have to do is open your eyes.横线上填what 还是 that?为什么

分类: 作业答案 • 2022-01-09 18:05:33

问题描述：

All___you have to do is open your eyes.横线上填what 还是 that?为什么

答

是that,
all是作先行词,也就是此句是定语从句