What is a citizen? A citizen is a member of particular country. Citizens have the right to live in their country permanently and are protected by its government.
Legal immigrants are welcome to become U.S. citizens. As citizens they may enjoy all the rights and responsibilities that come with being a citizens. Responsible citizens get involved in their local community, register to vote, and serve on a jury when chosen.

The process of becoming a U.S. citizen (naturalization)
meet several requirement : over 18 years old.
have a green card
live in U.S. for at least 5 years
understand, speak read and write simple English.
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Applying for naturalization(Form N400)
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sent it to INS（Imigration and Naturalization Service）
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Citizenship test→not pass→try again
↓pass
citizenship ceremony
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Take an oath of all eriance to U.S.
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receives a Centificate of Naturalization
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become U.S. citizen(officically)

Form N-400：person's name, address
employment
whether he or she has ever broken the law

Citizenship test ： about U.S. history, government.
twelve of twenty must be answered correctly

NEW WORD
permamently=forever
vice=1.evil crime wrong
2.assistant (副～)
naturalization=transfusion
oath=a solemn promise
pledg=a solemn promise or undertaking
allegiance=loyalty or commitment to a superior or to a group or cause(忠誠の義務) ( )