Having checked the doors were closed , and _________ all the lights were off, the boy opened the door to his bedroom.
The number of tickets _____ will be determined by the size of the stadium.
According to the psychoanalyst Sigmund Freud, wisdom comes from the _____ of maturity.
My camera can be _____ to take pictures in cloudy or sunny conditions.
Mr. Smith gradually _____ a knowledge of the subject.
His new appointment takes _____ from the beginning of next month.