Question: As I was saying to Miss Tuppence, resumed the lawyer, "I set to work to prove the impossible possible.
The lawyer sought to prove it impossible.

Answer: no

Question: Human nature puts Clinton at a disadvantage in this debate.
Clinton is at a clear disadvantage in this debate.

Answer: yes

Question: training, performance rewards and incentives, and performance appraisal systems.
Rewards, incentives and appraisal systems for performance, and training.

Answer:
yes