Reading Summary completion 2 Leave a Comment / By Ali / December 13, 2025 Choose NO MORE THAN TWO WORDS from the passage for each answer. The discovery of penicillin was the result of a fortunate 1. . Alexander Fleming observed that a mould had killed 2. growing on a culture plate. Although he spent years researching it, he could not produce it in large 3. . It was later researchers, Florey and Chain, who managed to 4. the substance effectively for medical use. Time's up
