1.It's known that there were early human settlements near natural salt deposits.
There is known to be there early human settlements near...
2.Soldiers in the ancient Roman army are known to have received salt as part of their wages.
It was believed that soldiers in the ancien Roman army were received salt...
3. Athousand years ago, salt was thought to be valuable as gold.
A thousand years ago, it was believed that salt were as valuable...
4. It's thought that a British tax on salt was one of the factors which led to Indian independence.
A British tax on salt is thought one of the factors which..
5. In some cultures even today, salt is thought that have been magical powers (nie pasuje mi to bardzo)
6. It's believedthat there are health problems connected with eating too much salt.
There are believed that health problems are connected...
proszę o sprawdzenie..