Complex sentence: He kept his immigration status secret, pursuing his education and fitting in as an American, with the help of friends and teachers, using false documents including a green card, Filipino passport, and a driver's license that helped him to avoid deportation.
Split into simpler sentences: He kept his immigration status secret, pursuing his education and fitting in as an American with the help of friends and teachers. He used false documents, including a green card, Filipino passport, and a driver's license to help him avoid deportation.