The bus crashed into a truck in front of it, ______ 40 deaths and more wounded. 

He called at every door, urging that people ________his products.

. Do you think it ______ great reward for London to hold _____ Olympic Games in 2012?

It’s the ability to do the job _______ matters not where you come from or what you are.

With a lot of difficult problems ______, the newly-elected president is having a hard time.