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Of all man’s natural enemies, the one that has caused him more trouble than any other must be the common rat. For centuries, man has been 21 to solve the problem of rats. The ancient Egyptians were probably the first people to try to 22 them with poison, and this method is still being used today. This says a great deal about how 23 this method has been. We have set innumerable 24 , from simple wires to 25 machines that drowned the rats in beer! We have tried to inflect them with 26 developed germs. We’ve 27 tried to raise super cats to kill them. However, we are still losing the 28 . So why can’t man manage to 29 a mere animal like the rat? The answer is simply that the rat isn’t a mere animal; It is a very special kind of animal. An average rat 30 : wriggle through a hole no 31 than a $1 coin; climb a brick wall as if it were climbing steps; happily leave a building by being flushed down the toilet, and then return the same 32 ; jump from a fifth storey window and run away 33 ; and last but certainly not least , | 
