John is very ______ —- if he promises to do something he’ll do it .

Their belief is proved by the fact that thedeath penalty prevents murder.

He ___ to break the record for the long-distance race.

being an outstanding physician and scientist, he was an accomplished writer and a gifted artist.

eat Wall winds its way from west to east,_______ deserts, _______mountains and ________valleys, until at last it reachesthe sea.