问题
选择题
______ the program, 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
答案:C
______ the program, 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:C