21.   Meanwhile, a lot rides on how well consumers take to the XP operating system.

22.   Still, the breakup is staggering and a lot is riding on the new guys.

23.   A lot rides on these exams.

24.   A lot is riding on their work.

25.   A lot is riding on the gamble.

26.   A lot is riding on the next six Sundays for Ryan Leaf and the punchless San Diego Chargers.

27.   A lot is riding on the outcome of the conference for oil and nuclear companies who could face multimillion-dollar clean-up bills.

28.   But a lot was riding on the outcome.

29.   For the industry, a lot is riding on this.