问题描述:
People will have robots in their homes in ten years 便否定句 一般疑问句 及肯定否定回答
划线robots 划线in the years 提问
There will be less ppllution in five years 划线less pollution 提问
划线robots 划线in the years 提问
There will be less ppllution in five years 划线less pollution 提问
问题解答:
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