2 Put the adjectives into the superlative form to complete the questions. 1 What's the _________ tree in the world? tall 2 What's the _________ bridge in the world? long 3 What's the _________ building in the world? old 4 Which animal is the _________ runner? fast 5 What's the _________ animal in the world? big 6 Who's the _________ chess player in the world? good 7 What's the _________ sport in the world? dangerous 8 What's the _________ language to learn? difficult