1. if the price of salt … (to go) up 10% you … (to pay) extra amount rather than … (to go) without salt.

1. If the price of salt … (goes) up 10% you … (will pay) extra amount rather than … (go) without salt.
1. If the price of salt … (goes) up 10% you … ( pay) extra amount rather than … ( go) without salt.
1. If the price of salt … (went) up 10% you … (would pay) extra amount rather than … (go) without salt.
1. If the price of salt … (had gone) up 10% you … (would have paid) extra amount rather than … (gone) without salt.

The idea of having wild animals at home sounds unreal. But nowadays it's become popular to buy pigs, ferrets and lizards. A lot of people think that it's cool, when you have abosolutely unsual animal. As far as I conserned, it can be dangerous. Even if we have wild pet at home for years, we can't give 100% guarantee that it became real domestic aminal. And who knows when it'll show its wild side. Moreover, wild animals need much freedom. They used to play in big fields, eat another animals, that's theirs way of living. It's violent too close them in 4 walls. So, I suppose, I approve why it's a bad idea to have wild animal at home.

Every year, millions of tourists come to London to listen to Big Ben. But what is this? 7 Many believe that Big Ben is a clock tower, but no! Big Ben is one of the four bells inside the tower. Its name comes from the name Benjamin Ben. The height of the tower is ninety eight meters, and the mass of Big Ben is fourteen tons. The clock is also huge. Hour hands are about 3 meters long, and minutes are about 4 meters. Perhaps you will someday also see this London landmark.
 
Теперь просто выучите это, удачи)))