Born in Vietnam, Ngan has lived in the United States for several years. She first lived in Chicago but joined family in Chattanooga two years ago. Ngan dreams of becoming a dental hygienist, and most U.S. dental schools require the TOEFL. Needing to improve her English, Ngan researched English as a Second Language programs online. “I saw that the ESL program at UTC was highly recommended by former students,”…