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The campaign calls ______ donations to help regions with natural disasters.

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Pioneers in science are often the ones who ______ other people to study and develop their discoveries.

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This charity provides support ______ underprivileged people.

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Building necessary ______ such as hospitals, schools and parks is important.

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Many people who ______ think that they are very fortunate to live the way they do and want to give something back to society.

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Their children ______ lots of new friends since they ______ to that town.

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Doing volunteer work is ______. It makes the world a better place.

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Volunteer work helps young people know their strong and weak points before they enter the ______.