Complete the sentences.choose the correct adjective form. таблица l | longer/the longest higher/ the highest bigger/the biggest | | | 1. the nile is the _longest_ river in the world. 2.everest is mountain in the world. 3. the sahara is desert in the world. 4. an ocean is than a sea. 5. mountains in asia are than in europe. 6. the volga is than the svisloch.