Failure to face up to painful experience can be ______ form of stress itself, and can increase ______ possibility of illness.
Parents should see to it _______ their children form the habit of brushing their teeth every day.
The computer system _______suddenly while he was searching for information on the Internet.
Whatfun it is to walk alone withfull moon hanging in the sky.
I insisted __________ to see a doctor, but he insisted nothing __________ wrong with him.
He studied hard, __________ the exam.