1.   And, in greater detail, he tells how rock became a mere commodity in the billion-dollar music industry.

2.   Around the city, rock became a costume party.

3.   A rock became a frog.

4.   But in the World Series, every rock becomes an avalanche.

5.   Fortunately, rock has become more adventurous of late.

6.   In the late afternoon sun the rusty rocks are becoming pink.

7.   In the years after the Revolution, Seelye writes, the rock became a rallying symbol for New England Federalists.

8.   Once shunned by American rock radio during the onslaughts of grunge and punk, British rock has become a new darling of radio programmers.

9.   Rock became just another official periphery, a bohemian enclave like many before it, and some music lovers used its otherworldliness to facilitate their retreat.

10.   The one thing that Crowe wanted to capture in the movie, though, is that rock has become what he calls a television sport.