Question

这个英语题选什么？为什么？

Doctors are now able to cure people of some diseases which in the past () them
A.must kill B.had killed
C.should kill D.would have killed

Answer 1

D.句子大意是医生们现在能够治愈人们的一些疾病，而这些疾病在过去会杀死人们。would have killed 意思是本来会杀了（would have done 本来将做），是虚拟语气，符合句意。

Answer 2

D
句子的英语意思是：
some diseases would have killed their patients if they (== the patients) had had them(==the diseases).------如果这些病人在过去患上the diseases,他们就已经死了

Answer 3

d
过去将来时
在以前，将会要了他们命的

Answer 4

D
表示过去总是。。。

Answer 5

D would have 本该会