Judging from a large amount of evidence presented, we can safely _________ the Three Gorges Project will change the lives of a great number of humans forever.

Since advertising can increase sales of production, _____it can _____the price.

 To ________ it simply, if you don't apologize to him，you will lose this friend.

Rather than ___ on a crowded bus, Tom always prefers __ a bicycle.

When the powerful earthquake struck and all lights went out all of a sudden. It seemed _______ the world was at an end.