英和和英

to be selected

play a vital role

picked―select―choice

choose

fulfill a role

to assign a part to each―cast the parts to the actors―cast the actors for the parts

to choose

assignment of parts―a cast of characters

an assigned post

make selections

to choose

play its role

select from a group

selected for a job

the action of assigning a task to someone

an optional subject

tending to select

by selection

the role of giving directions

a by-election

to perform one's duty

a {selecting switch}

to reelect

Please choose …

to make a good choice―pitch upon the right person or thing

an optional subject

an elective subject

to assign a part to each

optional choice―free choice

one's chosen field