We don’t believe the baby is badly ill ?A. do weB. is heC. is itD. isn’t it

问题补充：

We don’t believe the baby is badly ill,?

A. do we

B. is he

C. is it

D. isn’t it

答案：

A. do we

B. is he

(答案→)C. is it

D. isn’t it

解析：句意：我们不相信这个婴儿病得很严重，是吗？这里包含一个反义疑问句。前面是否定，所以后面用肯定；含有think, believe, suppose, imagine, expect等动词后接宾语从句构成的主从复合句在构成反意疑问句时，即当主句是I think，I believe，I suppose，I imagine，I expect时要反问从句，选C。