【题目】Nobody can imagine what difficulty we had ________ home in the snowstorm.
A.walking
B.to walk
C.walked
D.to walking

【答案】A
【解析】考查固定搭配。句意：没有人能够想象我们在暴风雪中走路回家的困难。have difficulty (in) doing sth“做某事有困难”。故选A。