Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Ayers Rock, which was found for the first time by European explorers in 1873, is a famous landmark (17) _______ the desert of central Australia. The original inhabitants of this part of Australia, the Aborigines, call it Uluru. It is 348 meters high, 3.6 kilometres long and 1.9 kilometres wide. It is a beautiful red-brown colour, especially when the sun (18) _______ on it early in the morning and in the evening.
When tourists want to visit Uluru, they often start 440 kilometres away in a town called Alice Springs. People on these trips usually sleep outside under the stars, not in tents (19) _______ it's more exciting. A fire keeps away snakes and other animals during the night. And when the sun comes up in the morning, the view of Uluru is amazing. After breakfast, visitors often walk around the base of the rock. There are caves around the base of the rock and inside them you (20) _______ see paintings. Some of them are thousands of years old.

Ayers Rock, which was found for the first time by European explorers in 1873, is a famous landmark (17) _______ the desert of central Australia.