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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1445

Nowadays, more and more people are using private cars, ________ has caused a lot of traffic problems, especially in large cites like Beijing and Shanghai.

A. that B.which C.it D.they
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Nowadays,moreandmorepeopleareu