13. Who was the radio invented?
14. The World Cup soccer are being televised all over the world this year
15. That problem hasn't been solved yet
16. A new block of houses is being built down the street
17. The building is locked at 7 o'clock
18. How many languages are spoken in Switerland?
19. Those men were caught stoling the car
20. Dr Johnson is being interviewed at the moment
