11.   Although usually lively, fight songs have a variety of origins.

12.   Always, she has a variety of visual effects, such as flowers and ice sculptures in various rooms.

13.   Although human beings have a variety of defensins, the fact that HIV is almost always fatal suggests that none exists for that virus.

14.   Americans have a variety of ways to invest in Israel.

15.   And both have a variety of community and political club endorsements.

16.   And yet we now have more varieties than ever.

17.   Apple already has a variety of products for connecting its Macintosh line of computers to the Internet.

18.   Because plasma monitors are designed to work with a variety of video sources, they usually have a variety of connector types.

19.   Before its intergenerational sense took over, the verb had a variety of meanings.

20.   Black will have a variety of duties, from pitching batting practice to scouting.