Passage Two
A. They can make cancer more incurable. B. They can increase the chance of getting cancer. C. They contain substances damaging DNA. D. They can produce DNA compound.
Passage One
A. Domestic economic crisis. B. Strikes in manufacturing industry. C. Domestic economic recession. D. Some jobs will be lost
A. A substance often served with hot dogs. B. A substance also known as N-nitroso compounds. C. A substance causing cancer in lab animals. D. A substance used to keep hot dogs fresh.
A. Critical B. Supportive. C. Dubious D. Controversial.