TOEIC Test - Hoc Tieng Anh

Invalid date

- Show correct answer after pressing the confirm button.
- Fix all bugs.
- Improved user experience.
- Improved performance.
- Version 1.7.0: Fixed issue banner ads too close to the dialog button,
by remove banner ads in the reading and listening screen.
- Version 1.8.0: In each skill, user needs to select an answer
before going to the next question.