Once environmental damage ________,it will take many years for the system to ...

admin2020-12-24 32

问题 Once environmental damage ________,it will take many years for the system to recover.

选项 A is to do
B does
C has done
D is done

答案D

解析环境一旦遭到破坏需要很多年才能恢复过来

转载请注明原文地址:https://ti.zuoweng.com/ti/U0B8KKKQ

相关试题推荐

随机试题

Theheatingsystemofthisbuildingismuchmorecost-effectivethanthatof...