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。
He declined _______ more about it.
People appreciate _______ with him because he is knowledgeable and humorous.
Peopleappreciate_______withhimbecauseheisknowledgeableandhumorous.
Importswillbeallowedinproportion_______exports.
The challenge is not one of expansion. _______, the rapid growth in enrollment over the last 40 years has come to an end.
