— Hurry up I think it’s going to rain. — . The skies are dark and cloudy.A. Not really.

问题补充：

— Hurry up, I think it’s going to rain.

— . The skies are dark and cloudy.

A. Not really.

B. I guess so.

C. Why not?

D. How great!

答案：

A. Not really.

(答案→)B. I guess so.

C. Why not?

D. How great!

解析：句意：上文，快点，我想快要下雨了。下文，我猜也是这样。天空乌云密布。Not really.事实上没有I guess so.我猜也是这样Why not?为什么不How great!多好啊，根据题意，选B。