Have-форма настоящего времени ,переводится как "иметь" для местоимений I,we,you,they
was это прошедшая форма глагола to be для единственного числа
Thinking about Great Britain, people usually remember of the Royal family, a foggy island, old castles, red buses, Big Ben , the Tower Bridge,football and tea. But Great Britain is a real country with its own geography, economy,political system, a rich culture and different sporting events.
The climate in Great Britain is rather cool and changeable.It often rains which is good for plants. The British love their green gardens full of beautiful flowers.
The English language is the first language of international communication in the world.
2. Whose is this jacket? - It's Matt's.
3. Whose is this rucksack? - It's Lisa's.
4. Whose are these trainers? - They're Ben's.