—I think it’s going to rain.— The sky is dark and cloudy.A. I guess so.B. Not really.C. Wh

问题补充：

—I think it’s going to rain.

— The sky is dark and cloudy.

A. I guess so.

B. Not really.

C. Why not?

D. How great!

答案：

(答案→)A. I guess so.

B. Not really.

C. Why not?

D. How great!

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