Помогите, пожалуйста
complete the sentences with the superlative form of the adjectives in brackets
1. The..book in the world measures 2.4mm by 2.8 mm. It's an alphabet book.
2. The..tree in the world is a redwood tree in California. Its is 115,5 metres tall.
3. The.. river in Europe is the Volga. Its is 3692 km long
4. The.. mountain in the British isles is Ben Nevis, in Scotland. It is 1344 metres high.