1)First create an csv or xml with a word list
2)Read your file and import to an array (Array1)
3)Shuffle your array
4)Pick some of the words for a another question array (Array2)
5)Reshuffle your array
5)Create another array with removing true answer (Array3)
6)Create an answers array(Array4). First value(true answer) from Array2. Others from array3
7)Shuffle array4
construct.net/en/free-online-games/example1-16793/play