31.   For example, shoppers often buy chicken when the price of beef jumps.

32.   For instance, the private costs of providing air travel are indicated by the price of air tickets.

33.   Furthermore, the actual price of the shares only has to be paid upon exercising the share option.

34.   Gold shares gained following a leap in the price of gold.

35.   Has the price of heart surgery gone up in the last five hundred years?

36.   Have you checked out the price of wampum these days?

37.   He had indeed allowed himself to become too dependent on her, and he had paid the price of it.