1 . Read the passage and fill in the blanks with proper words or the proper form of the given words.

Remains of ancient civilizations are places     1     were designed and built as a lasting tribute (致敬) to some individuals or events. By visiting these historic monuments, you are sure     2     (amaze) by how advanced ancient civilizations were centuries before you were   born. Some   facilities (设施) which can be dated back to hundreds of years ago are still in use today. Besides, you will also wonder about the     3     (mystery) stories behind them. The Great Wall, for example, is one of the best-known historic rlics in China, which consists of a network of walls and towers through     4     the warnings of attack could be received within minutes. Soldiers then had enough time     5     (prepare). Estimates (估算) of the total length of the monument vary, depending on which sections are included and how they are measured. Although some of the wall is     6     (recognize) in special radar images taken by satellites, astronauts have confirmed that the existing wall is not several thousand years old, nor is it, as many people had claimed, visible to the human eye from outer space.

Even older than the Great Wall of China is the Great Pyramid of Giza. Over a 20-year period, thousands of     7     (work) made the vision a reality with numerous blocks, each weighing more than two tons. It’s still a secret to modern people     8     ancient men manged to transport these giant stones in a time     9     cars or boats never existed. The pyramid served not only as a tomb for King Khufu, but also a place of religious activity. After Khufu died, his body was carefully treated with various chemicals and materials and was wrapped in order to     10     (preserve) for long.