题文
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 |
推荐试卷
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 |
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