2003年考研英语 use of english

问题描述：

2003年考研英语 use of english
完形填空倒数第二道39题On the contrary,they can help studengts acquire a sense of commitment by___ for roles that are within their capabilities and their attention spans and by having clearly stated rules.标准答案为plan，意为adults为teenagers制定计划，为什么不能选make或take（不确定选哪个好），意为adults帮助teenagers获得一种责任感，通过teenagers承担一些他们力所能及的角色并且拥有清晰明确的原则。