A survey of the opinions of scientists _____ that three hours of outdoor exercise a week _____ good for our health.
The UN is trying to ______ the world ________ hunger.
Much to my _______,I am unable to accept your invitation.
He was lucky that he escaped _______.
_____ the new policy, we are now having a happy life.
She was ________ the result. We knew it from her ______ look.