I really don’t want a bigger house— I’m __________ with what I’ve got.

He was so __________ a key university that he would work until late into the night.

 Mr. Liu is very ______ with his students as he always tries to make his classes lively and interesting.

Studies show that office workers are more ______to suffer from backache because they always sit before computer screens for long hours.                                   

Professor Wang is a friend of mine who works in a ________ school.