—How was the weather then?—Hardly off the plane when it started to rain.A. I had steppedB

问题补充：

—How was the weather then?

—Hardly off the plane when it started to rain.

A. I had stepped

B. had I stepped

C. I stepped

D. did I step

答案：

A. I had stepped

(答案→)B. had I stepped

C. I stepped

D. did I step

解析：考查倒装。否定意义的词开头句子采用部分倒装，而且hardly…when…句型中hardly后的句子要用过去完成时态。故选B。句意：那时天气如何？我一上飞机天就开始下雨。