. Supply the correct passive form of the verbs in brackets.
1. This computer ______(use) for two years.
2. America _____(discover) by Christopher Columbus.
3. I think this institution _____(widen) twice since 1999.
4. Sydney Opera House in Australia _____(finish) in 1973.
5. My sister is studying law at Viet Nam National University, Ho Chi Minh city now. This university _____(situate) in Thu Due District.
6. The Great Wall in China _____(build) many centuries ago.
7. David and his father ___(visit) the Temple of Literature last week.
8. The Golden Gate Bridge in San Francisco _____(complete) in 1937.
9. The University of Cambridge _____(form) in 1209. It is always considered to be one of the most prestigious universities in the world.
10. BurjKhalifa in Dubai, the highest building in the world,_____ (open) in 2010.
1 has been used
2 was discovered
3 has been widened
4 was finished
5 is situated
6 was built
7 visited
8 was completed
9 was formed
10 was opened
1 has been used
2 was discovered
3 has been widened
4 was finished
5 is situated
6 was built
7 visited
8 was completed
9 was formed
10 was opened