1.What is the first paragraph mainly about?
A.The basic data of the Transition.
B.The advantages of flying cars.
C.The potential market for flying cars.
D.The designers of the Transition.
2.Why is the Transition unlikely to show up in too many driveways?
A.It causes traffic jams. B.It is difficult to operate.
C.It is very expensive. D.It burns too much fuel.
