He bought a house for his children ________
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。
To a worker, ________ from the point of view of society is necessary labor is from his own point of view voluntary play.
Itisobvioushowbadmovieswillimpact________children.
So far scientists have only acquired ________ understanding of the physical processes that cause earthquakes.
The French maintain a ________ separation of personal and professional life.
Iwouldlove________tothepartylastnightbutIhadtoworkextrahourstofinishareport.
