Do you know the trouble he had _____ the work?A．on finishingB．to finishC．having

题干

Do you know the trouble he had _____ the work?

A．on finishing	B．to finish
C．having finishing	D．finishing

上一题下一题 0.4难度单项选择更新时间:2013-03-12 09:11:47

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