题意是
一旦环境被毁坏,(环境)系统将需要很多年来恢复
这里应该要选一个被动态,damage(破坏)被做,所以应该选D
B根本跟题意就不相符
这里是说破坏一旦被造成,那么damage就只能被做,不能选主动态的
如果选is being done表示的是正在被破坏,跟后面的时态不太配,而且翻译过来也会变得很奇怪了
其实如果有has been done我会选这个,因为它会更强调环境已经被破坏,这样会需要长时间来恢复
D选项没问题,我确信是这个.
不客气~希望对你有帮助~
once environmental damage ________,it will take many years for the system to recover
once environmental damage ________,it will take many years for the system to recover
A has done B is to do C does D is done 错在哪?还有D表示什么
回答者:匿名 12-2 00:52 xieixe
A has done B is to do C does D is done 错在哪?还有D表示什么
回答者:匿名 12-2 00:52 xieixe
英语人气:128 ℃时间:2019-08-21 12:37:15
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