21.   By contrast, some planetary missions, like Galileo to Jupiter and Cassini to Saturn, have cost billions.

22.   Cleaning up the damage will cost billions of pesos that Zedillo will somehow have to scrape together.

23.   Clinton indicated earlier this week that it will cost billions, not only in financial aid commitments, but possibly in military assistance as well.

24.   Consumer advocates say the extra charges will cost consumers billions of dollars annually.

25.   Converting them all to GPS would also cost billions of dollars.

26.   Dan Margulies, director of the Community Housing Improvement Program, a landlord group, estimated that citywide installation would cost billions of dollars.

27.   Does a proposal seem to cost taxpayers billions or raise prices to consumers?

28.   Early guesses are that damages will cost billions of dollars.

29.   Economists say an outbreak in this country today could cost billions of dollars.

30.   Experts predict that solving the problem will cost billions and will rival the efforts to control smog.