Most people think the electric light bulb (1)invented /was invented
by Thomas Edison. In fact, it was Humphry Davy who (2)invented /was invented
it in 1800.
In 1655 Huygens (3)discovered /was discovered
Titan, the largest moon of Saturn.
The first microwave ovens (4)produced /were produced
by The Raytheon Corporation in 1954
in 1928 the colour TV (5)developed /was developed
by John Logie Baird. Two years later he (6)made /was made
the first public TV broadcast. The first book in English (7)printed /was printed
in about 1474 by William Caxton.The first designs of a submarine (8)made /were made
by Leonardo da Vinci.
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Respuesta:
1) was invented
2) invented
3) discovered
4)were produced
5)was developed
6)made
7)was printed
8) were made
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