Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 19 to 24.

Singapore is an island city of about three million people. It's a beautiful city with lots of parks and open spaces. It's also a very ___(1)___ city.
Most of the people live in ___(2)___ flats in different parts of the island. The business district is very modern with ___(3)___ high new office buildings. Singapore also has some nice older sections. In Chinatown, there ___(4)___ rows of old shop houses. The government buildings in Singapore are very beautiful and date from the colonial days. Singapore is famous ___(5)___ its shops and restaurants. There are many good shopping centers. Most of the goods are duty free. Singapore's restaurants sell Chinese, Indian, Malay and European food, and the prices are quite ___(6)___.