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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较难
  • 浏览 1910

In the future, senior citizens will be able to go anywhere using high-tech cameras _______ to their head.

A.attaching B.attached C.to attach D.attaches
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Inthefuture,seniorcitizenswill