1. 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
2. When first to the market , these products enjoyed great success.
A. introducing B. introduced C. introduce D. being introduced
3. The disc, digitally in the studio, sounded fantastic at the party that night.
A. recorded B. recording C. to be recorded D. having recorded