Teenagers should ________ to take care of themselves from a young age.

So many ages since I last saw you that I ____________ you at all!— I wouldn’t have, either, if someone _____________ your name

Will he come to our dinner —He says that he will not come ________.

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

Where is Mr. Smith — He ________ Guangzhou. He ________ there for a week.