lǎo / shī / ràng / xué / shēng / liàn / xí / gěi / yī / duàn / méi / yǒu / biāo / diǎn / de / gǔ / wén / duàn / jù老师让学生练习给一段没有标点的古文断句。The teacher asked students to practice punctuating a passage of classical Chinese without punctuation marks.