Put the verbs in brackets in the passive.
1 Penicillin ____ (discover) by Sir Alexander Fleming.
2 The thermometer ___ (invent) by Galileo Galilei.
3 The World Wide Web ___ (develop) by Tim Berners-Lee.
4 Hitchocock 's film Vertigo ___ (release) in 1958.
5 The first aeroplane ___ (fly) in 1903.
6 The Eiffel Tower ___ (design) by Gustave Eiffel.
7 The Alhambra ___ (found) by Mohammed II.