--- We don’t think we’ll be able to go mountain-climbing tomorrow.
--- the weather turns out fine?
A. How e
B. How about
C. What if
D. Why not
网友回答
A. How e
B. How about
(答案→)C. What if
D. Why not
解析：这是一组对话。上文，我认为我们明天不能去爬山。下文，要是天气变好又怎么样？How e为什么How about怎么样What if要是……又怎么样Why not为什么不，根据题意，故选C。