19. What did Mr. Browning ask Brenda to do?
根据原文中did you put that ad in yesterday? 和The ad for a junior sales manager可知Mr. Browning是要求Brenda在报纸上刊登一则招聘广告。本题只需抓住ad一词(advertisement的缩写)即可确定答案为[C]。
20. What kind of person will meet the job requirements?
根据原文中fairly young, plenty of ambition, plenty of drive等关键词可知，招聘者想要寻找的是一个工作努力、有抱负的年轻小伙子，故答案为[A]。
21. What does Brenda think of the qualifications Mr. Browning insists on?
根据原文中女士话中you’re asking quite a lot 以及you’re asking an awful lot可推知她认为Mr. Browning的要求太多太高，不大可能会得到满足，故答案为[B]。