问题
选择题
. 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
答案
答案：B
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. 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
答案：B