Write the active sentences below using the past passive and by. 1 Companies first used plastic bottles in 1947. Plastic bottles were first used in 1947. 2 They finished the Burj Al Arab hotel in Dubai in 1999. 3 The Chinese invented paper almost 2,000 years ago. 4 Europeans threw out about 100 million mobile phones last year. 5 Swiss people recycled 96% of glass bottles in 2012. 6 John Dunlop made the first rubber tyre for his son's bicycle.