Complete the sentences using degrees of comparison. example: the blue whale is langer (large) than any of the dinosaurs. 1 amazon is the (long) river in the world 2 the amur is the (long) river in russia 3 the amazon is (long) than the amur 4 everest is the (high) mountain in the world 5 the great white shark is the (dangerous) shark. 6 the blue whale is much ( large) than the great white shark. 7 dolphins much (clever) than sharks.