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termaze

When the technique known as gene-splicing was invented in the early 1970's, it was feared that scien­tists might inadvertently create an "Andromeda strain," a microbe never before seen on Earth that might escape from the laboratory and it would kill vast numbers of humans who would have no natural defenses against it.


A.it would kill vast numbers of humans who would have no natural defenses against it
B.it might kill vast numbers of humans with no natural defenses against it
C.kill vast numbers of humans who would have no natural defenses against it
D.kill vast numbers of humans who have no natu­ral defenses against them
E.kill vast numbers of humans with no natural defenses against them


答案是A. 我的问题是C怎么不对了？kill 与escape平行啊，而A中为什么要多加一个it would kill呢？

Gail小M

I'll also go with C