完形填空

　　In the north of Scotland there is a lake called Loch Ness．It is the biggest 　　1　　 in Britain．It is over thirty kilometers 　　2　　 and in some places nearly 300 meters deep．It is cold and dark and not many people went there until after 1930．Then a road was made 　　3　　 the lake．

　　Holiday makers began to use the road, and this was when the 　　4　　 began．Someone said that he had seen a monster(怪兽)in the lake．He said it was twelve meters long．It had a long 　　5　　 and a small head．Then someone else said he had seen 　　6　　．Others said the same thing and in 1933 a London doctor took a 　　7　　．It 　　8　　 like a monster with a long neck and a thick body but the photo was not too 　　9　　．The newspapers printed the picture and 　　10　　 it the Loch Ness monster, or“Nessie”．

　　Then the argument(争论)began．　　11　　 people, however, were certain there was something living in the lake．Others said there was 　　12　　 there．

　　In 1961, a lot of people joined together to make a real 　　13　　 to see and photograph the monster to find 　　14　　 there was one!Several times people thought they saw something but after ten years there was 　　15　　 no real proof(证据)．

　　Later underwater television cameras were used, but 　　16　　 found any real proof．However, they 　　17　　 find something interesting：a huge underwater cave．It was big enough to be 　　18　　 of a monster, but of course, this was not a proof．

　　In 1975, however, some American scientists 　　19　　 a search group．They used an underwater camera．It took pictures every seventy seconds．Some of the pictures seemed to show a red-brown creature．Its body was about four meters long 　　20　　 had a very ugly head on the end of a four-meter neck．Many people then began to believe in the monster．But even today we can't be certain．