1.The best way to keep close relationship between friends is to keep contact with restraint and mutual non-interference.（往來有節(jié)，互不干涉）
2.I didn't buy a good seat for yesterday's film.
3.The national key university has prepared batches of qualified graduates for the society.
4.The teacher promised to give thses students special tuition.
5.He always sits on the fence and falls on the side of the stronger.
