正确答案为：
1 We study for the people.
主语：We
谓语：study
状语：for the people
2 We make him our monitor.
主语：We
谓语：make
宾语：him
宾补：our monitor
3 My parents often tell us about their bitter life in the past.
主语：My parents
谓语：tell
间接宾语：us
直接宾语：about their bitter life in the past