People have realized that they should go on _____ balanced diet and do _____ exercise every day.
Rather than _______everything to the last minute, I always prefer starting early.
The student must have been ill yesterday, ______?
If you ______ earlier, you ________ him.
Great changes __________ in our hometown in the past twenty years..
John, look at the time. ________ you play the piano at such a late hour?