Full In: Is, are, was, were,
1 Some of the tallest buildings in the worldlocated in Dubai,
2 Many skyscrapers .. .built by Canadian Mohawk Indians in the 1930s.
3 The world's tallest building
completed in 2009,
4 Astana Visited by lots of people every
year
1. are
2. were
3. was
4. is