— Were you caught in the heavy rain this morning? — Yes I washad I left home than it b

问题补充：

— Were you caught in the heavy rain this morning?

— Yes, I was. had I left home than it began to rain dogs and cats.

A. No sooner

B. Seldom

C. Hardly

D. Never

答案：

(答案→)A. No sooner

B. Seldom

C. Hardly

D. Never

解析：固定结构no sooner... than... 一...就... 引导时间状语从句,主句用过去完成时,than后面的从句用一般过去时.故选A。