I ______ the help of my colleagues in the preparation of this new column. 

Everyone should learn something about first aid，for every second will ________ in an emergency.

. Professor Lee is considering going to teach in Shenzhen, where he can get paid_________.

I always prefer _______ a bike rather than _______ to work.

Don’t try to persuade your boss；he won’t have the________of employing me—a flesh student.