Please don’t tell anybody about this, Linda.— .

This wall of air is an effective answer to the problem and it ____ work. —But it is a question to put such a wall of air around the statue.

He is having a family party in ________of his 84th birthday .

Are you sure Mike will help us if we are in trouble— _____ He is a reliable friend

If we can___our present difficulties,then everything should be all right.