The initial idioms of the letter C

cast away	cast aside
cast back	cast beyond the moon
Cast bread upon the waters	cast doubt
cast doubt on	cast down
cast eye over	cast eyes down
cast in (one's) teeth	cast in concrete
cast in stone	cast in the same mold
cast (some) light upon (something)	cast loose
cast lot in	cast lot with
cast mind back	cast net wide
cast off	cast on
cast one's lot with	cast out
cast pearls before swine	cast stones against the wind
cast the first stone	cast up
cast up (one's) accounts	cast vote