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
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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
解析