Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks.
Cheap and reliable electric lighting was a holy grail for 19th-century inventors. But didn't Thomas Edison get there first? No! He was beaten (11) ____ it by Britain's very own Joseph Swan, working out of his (12) ____ lab at his house in Gateshead, Swan got his (13) ____ - and started manufacturing and selling his bulbs - in 1880. He developed a tiny lament that used (14) ____ treated cotton, and set it inside an oxygen-free vacuum (15) ____ it wouldn't catch fire when it glowed white-hot.
Swan's first bulbs lasted little more than 12 hours but, unlike gas lamps, there was no name or dirty smoke and they soon (16) ____ on. The impresario Richard d'Oyly Carte (17) ____ the opportunity to make his new Savoy Theatre in London stand (18) ____ - and when it opened the following year it was the first public building in the world (19) ____ electrically throughout. D'Oyly Carte even took to the (20) ____ himself - holding a glowing bulb aloft, he ceremoniously broke it in front of the audience to prove it was safe.
Question 13.
rightsownershippatentpossessionHướng dẫn giải:Dịch: Ông đã bị đánh bại bởi Joseph Swan của chính nước Anh, khi làm việc trong phòng thí nghiệm tư nhân của ông tại nhà ông ở Gateshead, Swan nhận bằng sáng chế của mình - và bắt đầu sản xuất và bán bóng đèn của mình - vào năm 1880.
