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  • 更新 2022-09-04
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 14

So far, the number of people using 5 G mobile phones __________ a lot.(  )

A.

is increasing

B.

are increasing

C.

has increased

D.

have increased

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Sofar,thenumberofpeopleusing5G