I.

New York: 

- Country: The USA

- Continent: North America

- Places of interest: Statue of Liberty, Empire State Building, Times Squares, Central Park.

London:

- Country: Britain

- Continent: Europe

- Places of interest: Hyde Park, Big Ben, the Tower Bright, Houses of Parliament, the River Thames, London Eye.

Rio De Janeiro: 

- Country: Brazil

- Continent: South America

- Places of interest: Chris The Redeemer, Tijuca Forest, Maracana Stadium.

Singapore:

- Country: Singapore

- Continent: Asia

- Places of interest: Sentosa, Jurong Island, Merlion. 

II.

- New: Old - The oldest

- Cheap: Expensive - The most expensive

- Small: Big - The biggest

- Bad: Nice - The nicest

- Cold: Hot - The hottest

- Unpopular: Popular - The most popular

- Dirty: Clean - The cleanest

- Clean: Dirty - The dirtiest

1. The cleanest

2. The most popular

3. The hottest

4. The dirtiest

5. The oldest

6. The biggest

7. The nicest

8. The most expensive

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