Language focus 2 Past simple passive 1 * Complete the sentences with the past simple passive. Add by where necessary. 1 In Ancient China windows were made of paper because they didn't have glass. (make) 2 Cave paintings show that leather clothing people who lived 12,000 years ago. (wear) 3 The World Wide Web until in the 1990s. (not develop) 4 The first rubber boots France in 1853. (produce) 5 The potato came to Europe from Peru. It Spanish sailors. (bring) 6 The first lightbulb Edison, but he got the money. (not invent) 7. The first rules of football (write down) in Cambridge in 1848.