题目内容
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 |
A
“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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