How can i get greencard in korea

Immigrant visas to the United States are processed for citizens and residents of Korea at the U.S. Embassy in Seoul.

To apply for an immigrant visa, a foreign citizen seeking to immigrate generally must be sponsored by a U.S. citizen or lawful permanent resident immediate relative(s), or prospective U.S. employer, and have an approved petition before applying for an immigrant visa. The sponsor begins the process by filing a petition on the foreign citizen’s behalf with U.S. Citizenship and Immigration Services (USCIS). You may wish to review our Directory of Visa Categories on usvisas.state.gov to learn about the different types of immigrant visas to the United States, including our Diversity Visa Program. Then, follow the steps on the Immigrant Visa Process, or on the Diversity Visa Process, on the U.S. Department of State website to begin applying for an immigrant visa.

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).