This year is the 500th anniversary of the death of the artist and inventor, Leonardo da Vinci. The Louvre in Paris expects huge demand for its 47 Leonardo da Vinci exhibition this October, urging visitors to book a time slot 48 their visit. Da Vinci has been regarded primarily as an artist, but the thousands of pages that survived from his notebooks show his 49 interests and achievements, including work on geology, anatomy, flight, gravity and optics. He is often credited with 50 concepts for the bicycle, airplane, helicopter, and parachute some 500 years ahead of their time. Da Vinci produced ground-breaking work as an anatomist by dissecting 30 human corpses, 51 he studied in order to paint the human form more accurately. A 47. (A) forthcoming (B) intrinsic (C) hilarious (D) ingenious A 48. (A) ahead of (B) for fear of (C) referring to (D) left behind D 49. (A) unique (B) original (C) solitary (D) diverse B 50. (A) closing the gap between (B) coming up with (C) picking up (D) turning down A 51. (A) which (B) with which (C) of which (D) what