IV. Fill in each blank with one appropriate preposition to complete the passage.

ASEAN has a population of 575.5 million, accounting (1) _______for about 8.7% of the world‘s population. Its total area is 4,464,322 square kilometers. It is a region (2) _________of diverse cultures, and people in some countries such as the Philippines, Brunei, Malaysia and Singapore speak English (3)__________ besides their own languages. According (4)__________ to the statistics recorded in 2004, ASEAN had a combined gross domestic product (5) _________of about US$ 737 billion. This combined GDP grew (6) ________at an average rate of around 6% per year (7) _________from 2003 to 2007. The economies of the member countries are diverse, although its major products include electronic goods, oil and wood. The Governments of ASEAN countries have paid special attention (8) __________to trade. In 2006, the ASEAN region had a total trade of US$ 1405 billion. It has been estimated that a free trade area would be established in the region (9)_________ by 2020. The ASEAN leaders have also adopted the ASEAN Vision 2020, which is aimed (10)_________ at forging closer economic integration within the region. The Hanoi Plan of Action, adopted in 1998, serves (11) _______as the first in a series of planned actions leading (12) ________ to the realization of the ASEAN Vision.

ASEAN has a population of 575.5 million, accounting (1) _______about 8.7% of the world‘s population.