Multiple choice They are determined to _________ for their rights. stand by stand over stand in stand up . Reveal answer Fill a bubble to check yourself D Correct answer Explanation The idiom ‘to stand up’ means to assert for something. This is the correct answer. The idiom ‘tostand by’ means to wait, ‘stand over’ means to be deferred or postponed. The idiom ‘to stand in’ forsomeone, means to substitute for someone.