Heboughtahouseforhischildren________
A、livedinB
本题属于动词不定式复合结构做后置定语。 in 不可省略。句意：他买了一套房子给孩子们住。
_______atallisworthdoingwell.
TheFrenchmaintaina________separationofpersonalandprofessionallife.
Itisobvioushowbadmovieswillimpact________children.
Toaworker,________fromthepointofviewofsocietyisnecessarylaborisfromhisownpointofviewvoluntaryplay.
Peopleappreciate_______withhimbecauseheisknowledgeableandhumorous.
