They believe that there is _________ in the world

I apologize if I__________you，but I assure you it was unintentional(无意的).

____, do you know the young man—____, I don`t know him.

That’s a watch. It’s ____ old watch.

It is said that the film Kungfu Panda2 is a great success. Shall we go to watch it this Sunday—Sorry. I have to finish my homework.—Come on. Don’t be _______.