1. Oil, coal and natural gas are ............. fuels made from decayed material from animal or plants. a. unleaded b. smokeless c. solid d. fossil 2. We could make better ............ of our energy resources. a. spend b. use c. need d. limit 3. The government has spent 1 million on an advertising ............. to encourage energy conservation. a. campaign b. promotion c. operation d. enterprise 4. Many newer cars have a much lower fuel ................ a. consuming b. consumer c. consumation d. comsumption 5. Completed in 1756, Nassau Hall is the oldest building now ............. on the campus of Princeton University. a. standing b. it stands c. has stood d. stood 6. The Massachusetts State House, ............... in 1798, was the most distinguished building in the United States at that time. a. completing b. which was completed c. was completed d. to be completed 7. Norman Weiner, ............... mathematician and logician, had an important role in the development of the computer. a. who as a b. was a c. whom a d. a 8. War and Peace, ............... , was published in 1869. a. Leo Tolstoy's most celebrated novel b. that Leo Tolstoy's most celebrated novel c. which most celebrated novel of Leo Tolstoy d. is a Leo Tolstoy's most celebrated novel