学生们在操场上练习正步走。

The students practiced their ___marches on the playground.

军队行进时，乐队演奏了一首雄壮的进行曲。

The band performed a powerful ___march while the troops were moving forward.

这个小镇位于两国交界的争议地带。

The town lies in the disputed ___borderlands between the two countries.

学生们组织了一场游行来反对校园暴力。

The students organized a ___march to protest against campus violence.