okay i'm sorry but this is the worst website ever now this website says its to help you master the skill for example i had a comma no red ink assignment half my students it took them almost 3 hours to do because of the fact that when you get a question wrong it makes you do 3 to get back on track. but during those 3 questions their normally not the same concept or type of question as the one you got wrong. finally when it gives you the popup saying "looks like your having some trouble check here to get help" than it gives you this paper about how to do it which doesn't help you because its just for in general not that question i'm sorry if you love this app but this is my honest opinion.
How I Use It
i use it for my english lessons