— I failed my driving test again.— Don't be discouraged. You'll be successful ________.
— I'll come to listen to your speech at 9:30 tomorrow morning.— I regret to tell you that by then my speech ____.
_____ is the population of China? It is about 1,300,000,000.
Some doctors suggest that vinegar will ____ people from being infected ___ H1N1.
Our school is no longer ____ it was 10 years ago, _____ it was not well equipped.
He has been acting strangely these days. I can’t _____ his actions at all.