It is said that bad living habits as well as dirty surroundings, stuffy rooms and some other factors ________ the wide spread of H1N1.

We have every reason to believethat_______2008 Beijing Olympic Games will be_____success.

_____ being fun, watching English videos is a good form of listening exercise　　[ ]

He often says, “I ______ one million smiles in my heart _______ one billion dollars in my pocket.”

Only when ____hard____make your dream cometrue