Toaworker,________fromthepointofviewofsocietyisnecessarylaborisfromhisownpointofviewvoluntaryplay.
A、whatA
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。
Importswillbeallowedinproportion_______exports.
Theybuiltahighway_______themountains.
Onaverageabout￡5000ayearisspentoneachprivateschoolpupil,_______theamountspentonstateschoolpupils.
名词解释：silentpartnership
Thetrafficwasheldupformorethanthirtyminutes,________causedmetoarrivelate.
