Useless Quizzes in alphabetical order. If you know the English alphabet, you know all the answers to the quiz. =(
Review is changed, Background sound is removed, AD is removed.
"OX" images is more fast appeared according to your choice
added introduction of Author and Developer
various bug fix
seperate Study Level and Review Level
added Popup information of TTS Setup
added function of exiting program
freezing bug fix.
improve background sound