One of the most____ kinds of cars in the United States is not____ a car at all. It is a____ of a car and a___. It is called a sports utility____ or SUV. Some people____ these vehicles. They say SUV use too much___ and increase air____. They also say the vehicles may even be____ in some___. The market for SUVs____ to grow. About 20%of all cars and trucks____ in Us are SUVs. One____ may be that SUV seems like a vehicle that can do many ___ things.