在过去，学校老师有时会用藤条鞭打不守规矩的学生。

In the past, school teachers would sometimes ___flog disobedient students with a cane.

销售人员正在街上大力推销新款手机。

The salesperson is ___flogging the new smartphone on the street.

骑师轻轻鞭打马匹让它跑得更快。

The rider gently ___whipped the horse to make it run faster.