为何选D,不选CAnimals’ living environments have been getting worse

为何不选d 高中地理.! He_up early since his childhood.D.has been used to getting为何 The Smiths (have been living) here for ten years 为什么不能用 have 为何选D不选A? 为何这一题选D不选B? it's keep in the living room. that's where we have it. 为何不能用 What have l been living for my fever has been getting worse these past few days.从句子中可以看到 not gone not dead,but worse,have never been 为何选A不选D??? 求解 谢谢老师 sat语法题求解,为何选D不选A 英语问题33为何选D不选B