Completed the following sentence: The competing teams are chosen by a series of qualifying games: in 1960 and 1960 the competing teams are chosen by a series of qualifying games: in 1960 and 1960 the competing teams are chosen by a series of qualifying games: in 1960 and
1964<unk>through home and away play-offs; from 1968<unk>through a combination of both qualifying groups and play-off games. ️<unk>️<unk>️<unk>️