If there is a lot of work ， I'm happy to just keep on until it is finished.A. to doB. to

发布时间：2020-08-17 09:19:09

If there is a lot of work     ， I'm happy to just keep on until it is finished.
A. to do
B. to be doing
C. done
D. doing

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(答案→)A. to do
B. to be doing
C. done
D. doing
解析：“work”和“do”虽然存在逻辑上的动宾关系，但主语“I”和“do”存在逻辑上的主谓关系，此时用“to do”作后置定语。
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