Make the underlined words more formal, using words from C opposite. 1 The link between smoking and lung cancer was shown decades ago.
established
2 Anyone looking for employment in the film industry faces a tough time.
3 Social scientists often use official statistics in their research.
4 How often does the temperature fall to below zero?
5 If there is a fire, sound the fire alarm right away. Do not try to put the fire out.
6 Poverty is a basic issue in the world today.
7 This problem happens when the computer’s hard drive becomes full.
8 The doctor gave the patient a new drug that had not been fully tested.