insist on|insisted on|insists on|insisting on

年轻人经常坚持自己做所有事情。

Young people often ___insist ___on doing everything on their own.

弗兰克坚持自己做所有的工作。

Frank ___insisted ___on doing all the work himself.

她坚持自己做饭。

She ___insists ___on cooking all her own meals.

尽管下雨，她仍然坚持步行回家。

Despite the rain, she kept ___insisting ___on walking home.