A. vehicleB. approachC. confirmedD. aviationE. futureF. attachG. chancesH. transportationI. conceptJ. featureK. toL. complexityM. numberN. speedO. flightHow long have (1)_______ industrialists been dreaming about flying cars? So long that they’re not called flying cars anymore. Now they’re “roadable aircraft.” And while the (2)_______ for success of such roadable aircrafts are still in doubt, that doesn’t mean the (3)_______ of the flying vehicle is dead. We might just need to come at the problem from a different direction. One such new (4)_______ is the PAL-V (personal air land vehicle [车辆]) formed in Europe that changes from a road-going three-wheel motorcycle into a gyrocopter (旋翼机) that appears to fly as well as it drives — which is to say very well in both regards. Where the flying cars have suffered from a lack of lateral stability (横向稳定性) in flight and mechanical (5)_______ on the ground, the PAL-V flies as well as any gyrocopter you’re likely to see and, thanks (6)_______ its wonderful suspension (悬浮) system, drives like one of the best three-wheel motorcycles in the streets. The Dutch company behind the project has completed first testing of the PAL-V One prototype (样品) and (7)_______ that it could travel through the air over a distance of up to 275 nautical miles (海里) at a (8)_______ of 95 knots (节). The company recently announced it will begin production of the PAL-V with a limited (9)_______ of 45 vehicles priced at around $400,000 apiece. So while the flying car might not have a place in immediate (10)_______, perhaps a flying, three-wheeled gyrocopter will.