问题
选择题
You can’t imagine what difficulty we had _______ home in the snowstorm.
A．walked
B．walk
C．to walk
D．walking
答案
答案：D
have difficult (in) doing sth.表示“有困难做某事”。句意为“你无法想象我们在暴风雪中走回家有多么困难”。故选D项。
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