Reading: Fill in the Blanks — practice #rfib-001

The ancient city of Petra was carved directly into rose-coloured sandstone cliffs by the Nabataeans more than two thousand years ago. Its location made it a vital drop here on trade routes linking Arabia, Egypt and the Mediterranean. Merchants who passed through paid drop here that enriched the kingdom enormously. Clever engineers built channels to drop here scarce rainwater across the dry valley. After a series of earthquakes, the city was gradually drop here and lay forgotten by outsiders for centuries.