The key answer of exercise 4
The key to exercise solutions in chapter 5.5 - Grammar for the textbook Focus 3 (2nd edition) - Workbook with authors Daniel Brayshaw, Dean Russell, Anna Osborn and Amanda Davies from Pearson Education
Question
Complete the text with the correct relative pronoun and add commas where necessary.
Answer
Charles Darwin, who was born on the 11th of February 1809, was an English naturalist and geologist. He was the first person to suggest that all species evolved from a single original form of life. He also suggested the theory of natural selection, which attempts to explain why there are now so many different forms of life on Earth.
In the Galapagos Islands, where Darwin studied local birds, he found strong evidence to support his theories. Natural selection, which is sometimes called ‘survival of the fittest’, is still the most popular scientific explanation for the variety of life found on our planet. Darwin, whose ideas were questioned at first, is now famous as one of the most important thinkers in human history.
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