Then came the disturbing news Dolly had become seriously ill.A. howB. whyC. whetherD. tha

问题补充：

Then came the disturbing news Dolly had become seriously ill.

A. how

B. why

C. whether

D. that

答案：

A. how

B. why

C. whether

(答案→)D. that

解析： 四个选项分别表示怎样、为什么、是否和那个，根据题意选D，然后来了令人不安的消息，那就是多利变得病重了。