1. I made lots of ......................... mistakes in my writing. A. grammar B. grammartical C. grammatic D. grammatically 2. ..............................l waste has been dumped into this lake, so it’s seriously polluted. A. Chemist B. Chemically C. Chemical D. Physicist 3. Because of..........................achievements, we have decreased air pollution. A. scientific B. Science C. Scientist D. scientifically 4. Scientists say that......................exhaust fumes are our city. (poison) A. poisons B. poisoning C. poisoned D. poison 5. Many seabirds were ................... because of the oil spill. (die) A. dead B. death C. died D. dying 6. Waste from households will gradually ............................. the lake. (contamination) A. contaminates B. contaminate C. contaminated D. contaminating 7. What’s a.............................? It’s a substance that contaminates something. (pollute) A. polluted B. polluting C. pollutant D. pollution 8. If I................. a rich man, I would buy my own jet plane. A. am B. was C. are D. had 9. If I............a ghost, I would run a mile. A. see B. would see C. saw D. seen 10. If Tammy had a better job, she..............not so be miserable. A. would B. is C. can D. will