Question

Заполните пробелы правильной формой слова или правильной формой глагола в скобках.
The mysterious desert drawings known as the Nasca lines have puzzled people since they first 1___ (become/became /has bcome) widely known in the late 1920s.
Before air travel in Peru began, it was impossible to get a clear view of the giant drawings of the spider, monkey and hummingbird. One of the first formal studies of the lines was by Maria Reiche. She spent 2 _____(half /half а /а half) century working for their conservation and was convinced that the lines must have been part of an astronomical calendar. Other people thought they might have been ancient Inca roads ог
irrigation systems. 3_____ (The / A/-- ) strangest idea was that they could have been landing strips for alien spacecraft!
This region of Peru is one of the 4_____ (dry /dryest/driest) places on Earth and yet successful societies, including the Nasca, lived here. Water 5____ (must have /must have had /must had) an incredible significance to these societies, so perhaps the lines were related to this. We know that the Nasca River, 6 ____(where /which /whose) comes down from the nearby mountains, 7____ (is runing /runs /ran) underground for about fifteen kilometres before suddenly emerging on the surface again. This must have seemed an 8____ (astonish /astonishing /astonished), even sacred, phenomenon to ancient societies. It 9______ (have also become /has also become /becomes) clear that there are many huge drawings in the area, not just 10____ (one /the ones /ones) on the flat desert plain.

Answer 1

The mysterious desert drawings known as the Nasca lines have puzzled people since they first 1___ (becamee) widely known in the late 1920s.

Before air travel in Peru began, it was impossible to get a clear view of the giant drawings of the spider, monkey and hummingbird. One of the first formal studies of the lines was by Maria Reiche. She spent 2 _____(half а) century working for their conservation and was convinced that the lines must have been part of an astronomical calendar. Other people thought they might have been ancient Inca roads ог irrigation systems. 3_____ (The) strangest idea was that they could have been landing strips for alien spacecraft!

This region of Peru is one of the 4_____ (driest) places on Earth and yet successful societies, including the Nasca, lived here. Water 5____ (must have had) an incredible significance to these societies, so perhaps the lines were related to this. We know that the Nasca River, 6 ____(which) comes down from the nearby mountains, 7____ (runs) underground for about fifteen kilometres before suddenly emerging on the surface again. This must have seemed an 8____ (astonishing), even sacring, phenomenon to ancient societies. It 9______ (has also become) clear that there are many huge drawings in the area, not just 10____ (the ones) on the flat desert plain.