Toaworker,________fromthepointofviewofsocietyisnecessarylaborisfromhisownpointofviewvoluntaryplay.
A
本题要求填入一个关系代词引导主语从句，并在主语从句中作主语，所以选 what。
Onaverageabout￡5000ayearisspentoneachprivateschoolpupil,_______theamountspentonstateschoolpupils.
Peopleappreciate_______withhimbecauseheisknowledgeableandhumorous.
TheFrenchmaintaina________separationofpersonalandprofessionallife.
Toaworker,________fromthepointofviewofsocietyisnecessarylaborisfromhisownpointofviewvoluntaryplay.
Thechallengeisnotoneofexpansion._______,therapidgrowthinenrollmentoverthelast40yearshascometoanend.