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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 386

So many natural disasters are believed___________over the recent years because of the frequent unreasonable mankind activities.

A.to have come about B.to come about
C.coming about D.to be coming about
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相关知识点

Somanynaturaldisastersarebelie