By the time the fire-fighters arrived, the fire had been put___by the teachers and the students.
_____ their real economic situations, they got some relief fund from the government.
No matter how frequently _____ the works of Beethoven always attract a large number of people.
I heard that you really had a wonderful time at John's birthday party, _____?
Modern science and technology has _____ communication between people far apart.
Under no circumstance _____ to tell lies to parents.