Nobody can imagine what difficulty we had home in the snowstorm. A. walkingB. to walkC.

问题补充：

Nobody can imagine what difficulty we had home in the snowstorm.

A. walking

B. to walk

C. walked

D. to walking

答案：

(答案→)A. walking

B. to walk

C. walked

D. to walking

解析：考查非谓语动词和固定搭配。Have difficulty (in) doing sth做某事有困难，what difficulty we had home in the snowstorm是宾语从句，作谓语imagine的宾语。句意：没有人能够想象我们走雪地回家的困难。故选A。