That is great! But it needs... The app is the best one I've ever used. But there is a problem. When we enter a correct answer in practice mode, the answer get disappeared! It is better to have chance to have a look at the correct answer to keep it in mind and then go to the next test.
IT'S OK BUT... It's a good app but it should have more things to do.
Jahanzab When I saw this app I enjoyed to much
Good app for me It's make my work eassy I love it ⑤⑤↕
The official English Grammar in Use app, written by Raymond Murphy.