4 Circle the correct options. 1 Some of the lines in the Nazca desert are in order to / in fact the shapes of animals. 2 They are man-made, rather than / as a result of natural. 3 They have existed for a long time as a result of / so that the dry desert rock. 4 They are interesting because in order to / according to see them, you need to be high up in the air. 5 The lines were made over a thousand years ago, and there were no planes or helicopters then, then again / of course. 6 Then again / So that, some people think that it is impossible to make lines like these without using a flying machine. 7 According to / As a result of some people, the lines were for studying the stars. 8 We need to study the Nazca lines more, then again / so that we can find out how people really created them.
