the programme they have to stay there for another two weeks.A. Not completingB. Not com

问题补充：

the programme, they have to stay there for another two weeks.

A. Not completing

B. Not completed

C. Not having completed 

D. Having not completed

答案：

A. Not completing

B. Not completed

(答案→)C. Not having completed 

D. Having not completed

解析：此题考查非谓语动词的用法。否定词要放在分词的前面；由于前面的行为引发后面的结果，所以要用现在分词的完成时态。