1. (2019年天津卷)A study shows the students who are engaged in afterschool activities are happier than ______ who are not.
解析：句意：一项研究表明，参加课外活动的学生比不参加的学生更快乐。空处指代前面的复数名词the students，后面是who引导的定语从句，此时应该用表示特指的指示代词those。
答案：those
2. (2019年北京卷) For the past 20 years, I have lived by these words. Soon I will graduate and become part of the real world. Nervously facing challenges, I know I will whisper to ________(I) the two simple words “Be yourself”.
解析：whisper to sb.意为“低声对某人说”，此处指代主语I，故用反身代词myself。
答案：myself
