[单项选择]A. It comes regularly from its donors. B. It has been drastically cut by NASA.
C. It has been increased over the years. D. It is still far from being sufficient.

[单项选择]From its invention, the car has provided an unquestionable level of personal mobility, giving people the freedom to travel where they like,when they like. For many,owningacar is (67) a (68) but a necessity that allows them to commute to work, take the kids to school and do the weekly shop. There is, and (69) will be, an important (70) for the car. But in a tow-carbon future, the car will have to be cleaner and greener than ever before.
Cars account for approximately 14 per cent of annual UK CO[₂] emissions but, (71) the number of cars on the road has (72) to climb, their total emissions have begun to fall. Emissions have fallen (73) all (74) types, with technological advances and the (75) use of lightweight materials making the large family saloons of today more (76) than decade-old superminis.
It is the development of new power trains--electric, hybrid and hydrogen fuel cell-powered vehic