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When the alarm went off, everyone proceeded calmly to the emergency exits.

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The International Red Cross helps people in need without any discrimination based on_______, race, religion, class or political opinions.

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Up until the middle of the 19th century, there were no_______and well established anny nursing systems for casualties.

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He asked, "Why didn’t she take the final exam?” - He asked why______the final exam.

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The line is busy; someone_________the telephone now.

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The number of Vietnamese sport officials and referees of international standard taking part in regional tournaments has increased rapidlv.

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ASEAN press praised the great_________ of Vietnamese athletes at the 22nd SEA Games.