Most of the old are interested in __ events. [ ]

Our school has more than two ____ teachers and ____students.

Attention, please. All of you students _______ remain in their seats until all the papers have been collected.

We have every reason to believe that ____ 2010 World Expo in Shanghai will be ______ success.

I’m sorry I broke the window.–I’m afraid you have to______ it.