This is a simple gap-fill exercise made with the program. The user enters his or her answers into the gaps, then presses the "Check" to find out which are correct, and to get a score. For each gap, up to four correct can be accepted. For example, this allows the answers "gap", "space", "blank" and "slot". Try them and you'll . If the user needs help, he or she can on the "Hint" button to get a free letter. To get a free letter in a particular gap, put the cursor in that gap before pressing the "Hint" button. The "Hint" button is optional -- if you want to make the exercise difficult for your , you don't need to include it. Finally, you can make answer-checking case-sensitive or not as you wish. This exercise is not case-sensitive -- you should be able to enter answers in upper or case.