Gafni owns several top-of-the-range bicycles which he said are worth thousands of dollars each, but when his own creation reaches mass production, it should cost no more than about $20 to buy. The costs of materials used are estimated at $9 per unit. (295W)

　　6. The bicycle mentioned in the passage　.

　　A. is made completely of cardboard

　　B. is made by a professional designer

　　C. will only change transportation habits of the people in the cities

　　D. will be mass-produced within a year

　　7. Izhar Gafni is a person who　.

　　A. was crazy about putting some technologies to use

　　B. worked for four years before he could fold the cardboard in several directions

　　C. made a cardboard bicycle as easily as a box

　　D. took a year and a half to remove the cardboard’s weak structural points

　　8. Izhar Gafni dipped a cross-section in the water for several months to test whether it was　.

　　A. water-proofing B. fire-proofing

　　C. durable

　　D. foldable

　　9. We can infer from the passage that　.

　　A. the cardboard bicycle is not only environment friendly but also inexpensive

　　B. Gafni has ever invented some bicycles worth thousands of dollars each

　　C. Gafni succeeded in making cardboard bicycles without much difficulty

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