Read the text and complete gaps 1-7 with the correct form and tense of each verb in capitals. A Once-in-a-lifetime Opportunity Dogs have been man’s best friends for centuries. Even today, they 1) ………NOT BE…….. just companions, but also the only means of travel for many people who live in the Arctic. In parts of Greenland, for instance, dog sledding still 2) ……PLAY……….. a major role in people’s lives as an essential mode of transport during the winter and spring. Although dog sledding 3) ……DEVELOP……….. hundreds of years ago and was used for hunting and travel, today it is mainly used to promote tourism, especially through sled tours. Dog sledding is one of the best ways for visitors to enjoy the amazing arctic scenery. Most people may 4) ……READ……….. about dog sledding, but actually experiencing it is completely different. In fact, many countries in the Arctic Circle 5) …………ORGANISE….. dog sled tours for decades. Some of them include catching a glimpse of icebergs and glaciers by day, and 6) ……SLEEP……….. in tents on the sea ice at night. A visit to the Arctic region is a life-long dream for many travellers. Dog sledding tours have a thrill and excitement that is incomparable to other adventure holidays. Without a doubt, dog sledding 7) ………CONTINUE…….. to fascinate tourists in the future.