Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks THE EARTH GALLERIES To many people, the word ‘geology’ conjures up rather dull image of lumps of rock in glass cases. People tend to regard geology as an academic subject that you don’t need to know about (56)________you have to study it at school. If you visit te Earth Galleries at London’s Natural history Museum, however, you’ll (57)________that this image couldn’t be further from the truth.