(单选题)
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
参考答案:A
参考解析:
考查不定式作定语。句意:如果有大量的工作要做,我愿意一直继续直到把它做完。there be句型中常用to do主动式表被动,to do在句中做定语修饰work,其余选项不符合题干。故选A。
知识点:
