阅读理解，回答问题。 In many south European courtries, you can see many lost dogs and lost cats on the streets. Every year there are born more animals. Low to solve the problem. The volunteers are trying to deal with this problem. These voluntcers, most of which are from western Europe, want to make sure that the dogs and the cats will have a better life. So since a few years ago Kusadasi has opened a shelter (收容所) for the dogs. This dog shelter puts up 200 dogs. Although the shelter can't take in all lost dogs, it catches all of them for sterilization (绝育) and then puts them back on the streets. So there will be born less lost dogs and after a few years the problem will be solved. How can you help. To realize this: the shelter needs a lot of money. Money for food and medicines is the most urgent (紧急的). A few months ago the shelter bought a big fridge to keep the food in. Once a day a man drives for one hour to some hotels to pick up the leftovers (剩菜),but in winter most of the hotels are closed. That is why in winter the fridge is often empty. Please give us a hand to help those lost dogs and lost cats. 1.Where are most of the volunteers from? ____________________________ 2. How does the dog shelter do to help solve the problem? ____________________________ 3. What will the shelter spend the money on? ____________________________ 4. What does the writer want to explain in the last paragraph? ____________________________