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。
I would love ________ to the party last night but I had to work extra hours to finish a report.
Hedeclined_______moreaboutit.
The traffic was held up for more than thirty minutes, ________ caused me to arrive late.
They built a highway _______ the mountains.
—You were brave enough to raise objections at the meeting.
— Well, now I regret ________ that.
