Parents should be aware that communication between parents and their children is important, _____ their heavy work loads[ ]

－I’ve decided to compete in the race, but I’m afraid I won’t be the best.－____. You never know until you try.

_____ writer, she is excellent, _____ teacher she is not very good

I agree with most of what you said, but I can’t agreewith ______.

Beneath our feet ______ that our life depends on for food and clothing. [ ]