In 2003, he must be out of school because their parents have no money. He had to read a book using energy research in the library and other electric power production from wind turbines.
In 2003 he had to leave school because their parents have no money. He was researching a book in a library using energy to produce electricity from wind turbines.
In 2003 he had to quit school because their parents have no money. He had read in the library research using energy Seung production energy from wind turbines.