We haven’t seen basketball star Jordan for a long time.—He ________ the stage last year.

The recent finding shows that once _____ computer games, one will find it difficult to give it up.

There are _____ teachers in our school.

The Shanghai Expo has attracted more than 73 million tourists, ________ it the most successful in history.

History is the best teacher It ________ records thedevelopment path of each country and foretells the future to us