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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 2104

With more and more birds _______, some day some species will _______ completely. In addition, some of them have _______ environmental pollution.

A.dying off; die out; died from
B.dying away; die off; died from
C.dying down; die out ; died of
D.dying out; die away; died of
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Withmoreandmorebirds,somedayso