--- Your classroom is very clean.--- Sure. It ________ after school every day.
My parents _____eat junk food, because it’s bad for our health.
Most students watch TV three ____ four times a week.
What ______ she usually _____ on weekends?
“______ do you exercise?” Three times a week.”
A: May I go out to play football, Dad? B: No, you ________. You must finish your homework first.