the programme.they have to stay there for another two weeks． [ ] A．Not completin
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________the programme，they have to stay there for another two weeks．
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A．Not completing
B．Not completed
C．Not having completed
D．Having not completed
试题答案
答案：C
解析：现在分词的完成式表示动作发生在have to stay there for another two weeks之前，其否定形式在现在分词前加not。 |