Буду вставьте артикли 1have you ever been america? 2 is river thames in center of london? .3 how many bridges are there thames? 4 romans wanted to build bridge over .

1. Have you ever been to South America? 
2. Is the river Thames in the centre of London? 
3. How many bridges are there over the Thames? 
4. The Romans wanted to build a bridge over the Thames.