They are among the growing number of Americans who，driven by higher living costs and a falling economy(经济)，have taken up vegetable gardening for the first time.Others have increased the size of their existing gardens.Seed companies and garden shops say that not since the 1970s has there been such an increase in interest in growing food at home.Now many gardens across the country have been sold out for several months.In Austin，Tex.，some of the gardens have a three­year waiting list.

　　George C．Ball Jr.，owner of a company，said sales of vegetable seeds and plants are up by 40%over last year，double the average growth of the last five years.Mr.Ball argues that some of the reasons have been building for the last few years.The big one is the striking rise in the cost of food like bread and milk, together with the increases in the price of fruits and vegetables.Food prices have increased because of higher oil prices.People are now driving less，taking fewer vacations，so there is more time to garden.

　　31．What does the word “residents” in Paragraph 1 probably refer to?

　　A．chickens

　　B．tomatoes

　　C．gardens

　　D．people

　　32.By saying “a win­win situation all around”，Ms.Gartin means that________.

　　A．she is happier and her garden bigger

　　B．she may spend less and lose weight

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