21.   Internet Explorer has an Auto Disconnect option that when turned on will break an Internet connection after a specified period of inactivity.

22.   Interest in puts, which give holders a right to sell the stocks at a set price over a specified period, has already picked up.

23.   Like members of the military and many other federal employees, missionaries work in foreign countries for specified periods, then return home.

24.   Many clubs charge a fee if you leave before a specified period of time.

25.   Many of the highways have been financed by private companies that are allowed to charge hefty tolls for a specified period of time to recoup their investment.

26.   Participants receive benefits for a specified period of time.

27.   Speakers said that more hospitals may need to control the initial choice of antibiotic and then use computers to cut off a prescription after a specified period.

28.   Stock options give investors the right to buy or sell a certain amount of a stock at a fixed price within a specified period of time.

29.   Stock options are essentially a promise from the company to sell a given number of shares at a fixed price for a specified period of time.

30.   Such orders guarantee retailers a certain price and delivery within a specified period.