单选题
It wasn't long before they found that there was much trouble ______ the plan.
A、
to carry out
B、
carrying out
C、
with carrying out
D、
to have carried out
【正确答案】
B
【答案解析】
句意：不久，他们就发现实行该计划非常困难。there is no difficulty/trouble (in) doing sth. 为固定用法，意为“做某事不困难”，题干中为该搭配的肯定形式，即there is much trouble (in) doing。
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