根据首字母填空

根据首字母填空
1.The sooner the task will be done,the fewer people can be i________ in.
2.Neil armstrong made people around the world realize that space exploration was t___________ possible.
3.Because of the stomachache ,Jim is a_______ for the 100-meter race.
4.He became i_________ in flying ever since he took his first flight at the age of 16.
5.I don't know if he r________ our invitation.
6.Everyone should make a contribution to p________ the environment.
7.Yang Liwei was s__________ to be China's first astronaut to fly in space in 2003.