---_____ you play the violin at midnight? It disturbs the neighbours!--- Sorry, I was too absorbed in it and forgot the time.
Tom kept quiet about the accident ____ lose his job.
He wrote to his friends ______ information.
Old McDonald gave up smoking for a while, but soon _____ to his old way.
What _____ to Joan last night? What did she cry for?
_____ is the population of your country?