Supply the correct passive form of the verbs in brackets :
Sydney Opera House in Austalia ( finish ) ..................... in 1973One Pillar Pagoda in Ha Noi ( complete ) ........................ in 1049The Imperial Academy (consider ) ................. the first university in Viet Nam The Great Wall in China ( build ) ...................... many centuries agoThe Golden Gate Bridge in San Francisco ( complete ) ......................... in 1937Burj Khalifa in Dubai, the highest building in the world, ( open ) ..................... in 2010A painting by Picasso ( sell ) ........................ for 3 milions dollars last year America ( discover ) .................... by Christopher ColumbusThe Japanese Covered Bridge in Hoi An ( build ) ....................... in the 16th centuryThe site for Huong Pagoda ( discover ) ....................... about 2000 years ago