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We need ___________ to help the disaster-stricken area.

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The World Trade Organization was established aiming _________ reducing tariffs for the facilitation of global trade.

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He dedicated all his life ___________ maintaining global peace.

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He is the representative ___________ in for Organization for Economic Co-operation and Development.

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WHO main activities are carrying _______ researches on medical development and improving international health.

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Living standard of our residents has been improved a lot in peacetime in comparison _______ war time.

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The tsunami washed _______ houses, trees and cattle.