A high school student is talking with his uncle who works in an auto shop. Student: Are tires and wheels important to cars? Uncle: Of course. (1) . They transmit the driving and braking power to the road. Tires should be selected and maintained with great care. Student: (2) . Uncle: To maintain grip on the road when a vehicle is traveling over a bumpy surface. (3) . Also it must be strong, cheap to produce, easy to clean, and simple to remove. Student: (4) . Uncle: There are two basic types of tires, with inner tubes and without inner tubes. (5) . Student: Which tire is widely used in trucks and buses? Uncle: Usually, the inner tube type. Student: Thank you, uncle! Uncle: You’re welcome.