The application provides some services to facilitate English self-learning. An arbitrary text to be studied can be registered via typing or capturing with a camera. The application can then generate automatically several language exercises as the following based on the text:
Vocabulary exercises: explaining words in the text, listening to their pronunciation as well as practicing the pronunciation with auto evaluation.
• Grammar exercises: resuming some main grammar notes found in the text.
• Reading comprehension: generating some questions and correct answers for students to check their understanding about the content of the text.
• Conversation exercises: performing the vocal dialogue between application and students to verify their understanding and their pronunciation while vocally responding to the questions. The application can provide the immediate feedback on the correctness of the answers.