题目内容：

I don't think to clone humans is good,____ A.is it B.isn't it C.do I D.don't I
为什么是 a不是b

优质解答

因为句子为否定前置 所以 I don't think to clone humans is good 可变为I think to clone humans is not good 所以反义疑问句用A

追问：

如果是I think to clone humans is not good, ____ ? A. is it B. isn't it C. do I D. don't I那该怎么填

追答：

同样选A