2 Choose the correct words. In the UK, the laws about smoking have changed a lot. In the past, people (1) are / were allowed to smoke everywhere. You (2) can / could smoke on buses and even at the cinema! Before 2007, 16-year-olds (3) are allowed to / could smoke, but now you (4) aren't / weren't allowed to buy cigarettes until the age of 18. In the UK today, people (5) aren't allowed / can't to smoke in any public buildings. In some countries, the laws are even stricter. In 20 cities in California, you (6) can't / aren't allowed smoke in any public place, including