题目内容
According to a UN report, some 844 animals and plants ______ in the last 500 years.
A. disappeared B. were disappeared
C. have disappeared D. had been disappeared
C
解析:
略
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题目内容
According to a UN report, some 844 animals and plants ______ in the last 500 years.
A. disappeared B. were disappeared
C. have disappeared D. had been disappeared
C
略