The page is attached. You just need to make changes for the first page 4_1_1.html.
Here are something to add:
(0) The whole page must be in html5 and for cell, PC as well
(1) Fonts and colors need to be changed, in a way of professional
(2) "Red" part must be hidden. When "Check" is clicked, it shows
(3) You don't need to worry about the button "Play"
(4) Click on "Text", it needs to change to "Question"
(5) The whole content in text area must be written in a better way. However, don't mess up with the functions. Each sentence is clickable to play
(6) The bottom "Check Answers" need to show all answers。If user chooses a wrong answer, it will be red, otherwise, the answer is green
(7) When click on each sentence, it plays, the corresponding text must be highlighted with some color
(8) Again, make the page a good look