once harm____(do)to the environment,it takes years to have the system recovered.
once harm____(do)to the environment,it takes years to have the system recovered.
英语人气：483 ℃时间：2019-09-11 11:53:15
优质解答
done,完成时,表示"一旦破坏了环境"
我来回答
类似推荐
- Once harm ( )to the environment,it takes years to have the system recovered 括号里填什么,为什么
- Once harm is done to the environment,it takes years to have the system recovered.
- Once environmental damage __,it takes many years for the system to recover
- Once environmental damage _______,it takes many years for the system to rec
- once harm is done to the environment,it takes years to have the system _
猜你喜欢
- 1如图,四边形ABCD是菱形,点M、N分别在BC,CD上,且BM=DN,MG∥AB,NF∥AD,点F、G分别在AB、AD上,MG与NF交于点E,求证：四边形AFEG是菱形
- 2若函数f(x)=x²+4x+5-c的最小值为2,则函数f(x-2011)的最小值为_____
- 3两辆汽车从甲乙两地相对开出,甲车每小时行驶56千米,乙每小时行52千米,如果两车相遇时甲车比乙车多行驶了
- 4hello!who is that speaking?
- 5六1班男生人数是全班人数的9分之五,女生人数比男生少5人,男女生各多少人
- 6每周的第一天是周日还是周一?
- 7When he was a child,he often ___ football here.A.played B.plays C.play D.is playing
- 8写出含有“年”字的三句诗句
- 9第二个字和第四个字是近义词的四字词有哪些?
- 10一辆汽车从甲城开往乙城,3小时行驶108km,用同样的速度在行驶2.4小时就到达乙城,甲、乙两城相距多少千