Read the following passuge and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.
Set in the red đesert of the Central Australia is the mining town of the Coober Pedy. At first sight, the town looks similar to many other such communities, but Coober Pedy is different. Sixty per cent of its population is some 4,000 people living underground. There are today about 800 underground houses as well as shops, hotels and even churches in the town and the (41) _________ hills. Once a site has been chosen, special tunneling machines are (42) _________ in to create passages and rooms in the sandstone. Rock pillars are left to (43) _________ the roof. and doors and windows are cut into the front. Houses are of all shapes and (44) _________ , the largest has twenty rooms, and some even have their own swimming pool.
Living underground may sound strange but in fact it has a number of advantages. In summer, the temperature outside can reach an astonishing 47°c, and in winter the night can be (45) _________ cold. However, inside the houses it remains a steady 25°c all year (46) _________ . Many people say that living underground makes them feel very secure. There is no problem with noise from the neighbors and the houses are not (47) _________ by the fierce dust storms that regularly (48) _________ through the area. And of course, if vour family (49) or lots of friends come to stay, you can (50) _________ dig another room.
Trả lời câu hỏi dưới đây:
_________ (43)