1) The Harry Potter series __________________ by J. K. Rowling. a) is written b) was written c) wrote 2) The most famous portrait in the world, Mona Lisa, ________________ by Leonardo da Vinci. a) was painted b) is painted c) were painted 3) X-rays __________________ in 1895 by Wilhelm Conrad Roentgen, who was a German Professor. a) discovered b) are discovered c) were discovered 4) Scissors ___________________ for cutting thin materials, such as paper and metal foil. a) used b) are used c) use 5) The movie Avatar _______________ by James Cameron. a) directed b) were directed c) was directed 6) Cars _______________ in factories. a) are produced b) were produced c) produces 7) The tunnel _________________________ last year. a) is repaired b) repairs c) was repaired 8) Brilliant ideas ________ generally __________. a) were / copied b) are / copied c) is / copied 9) The light bulb ____________________ by Thomas Edison. a) was not invented b) were invented c) were not invented 10) Google ____________ officially ____________ in 1998. a) was launched b) is launched c) were launched

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