单项选择题
Respect for the law is the foundation of civilized living， （）breaks it will be punished.
A.who B.whoever C.people who D.no matter who
单项选择题 Hismarkedchangesinpersonalitywere（）byaseriesofunfortunateeventsinhislife.
单项选择题 Mostofthestudentsaresaidto（）theproposednewtrainingsystem.
单项选择题 Ihaveto（）myvisitasI’llbeverybusynextweek.
