— _____ do you go swimming with your father, Jane?—About once a week.A. How long B. How many times C. How often
When I was a child, I used to ___________ chocolate.
Did the police catch the thief___________?
He doesn’t do his homework___________, though he has ___________.
—_________ was light bulb invented ________ ? —Thomas Edison.
Some students enjoy raising pet dogs while__ don't agree with them.