一个英语问题 要用英语回答 问题有点小难 快来帮帮我啊。。。急求答案！

If I were the policeman,I will gave the parachute to the doctor.because if the doctor surrived,he would save more people.
If I have no choice but to be the polieman and to explain to get the parachute,I will say, being a policeman I have more chance to surrive than others,because the surrive-skills I have learned during my trainings.Further more,if I surrive,I will be more efficiency and specialized to search for help and save others than you four.So in order to save more people,I should get the parachute.

有的单词不是很准确，还有待修改。

试想一下，四个人现在将要坠毁的飞机上，一个是警察，一个是医生，一个是老师，一个是科学家，但是只有一个一个降落伞，假如你是警察，你怎样跟大家说你要得到这个降落伞？