我々はジョーダンさんを議長に選んだ。

we

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

Mr.; Mrs.; Miss; Ms.; -san; makes words more polite (usu. in fixed expressions)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

chairman; speaker (e.g. of assembly); president (e.g. of council, senate, etc.); moderator (e.g. of a newsgroup)

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

to choose; to select