It is bad ________ for a man to smoke in public places where smoking is not allowed.
When people watch the show, they usually ______ in deciding the winner.
-----Shall we go camping tomorrow? ------ It is _______ him to decide.
Miss Li is one of _______ in our school.
He is ______DJ of the program in Blue Sky Radio Station
My brother in senior high school does __________ homework every day.