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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 306

Many people believe that _______ will takes years to develop a car that does not pollute the air.

A.it B.that C.there D.this
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Manypeoplebelievethatwilltakes