If I ________ your advice then, I think that the crops could be growing better.

It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off. 

They have promised the money collected        be handed to the charity house.

Robert Collier once said, “A single idea---the sudden flash of a thought --- __________be worth a million dollars.”

—Peter, your hair is getting much too long. It’s high time you __________it cut.—OK. I will.