Mark the letter A, B, C or D on your answer sheet to indicate the words that in the blanks. Isaac Newton, one of the greatest (46)_ was born on December 25th, 1642 (47)a small village in Wool Thorpe in England. His father was a poor farmer. When the boy (48)_ fourteen, his father died. Newton left school and helped his mother on he the farm. (49) was fun of physics and mathematics, Newton was sent to school. After he left high school, Newton studied at Cambridge University. In 1667, he became a professor of mathematics at the university. His greatest discovery is the law of gravitation (50) is very important. He died in 1727. D. a scientist 46. A. science B. scientists C. scientist C. at 47. A. in B. on D. behind 48. A. is B. are C. was 49. A. So B. So that C. Because 50. A. which B. who C. whom D. were D. Because of D. where ) to ue irs