You can try several times, and the speech recognition will let you know if you are correct or incorrect.
a. If you are practicing with an interactive instructor video, repetition is compulsory to move on to the next activity. If you are correct, you will be asked to try “one more time” and then move on. If you are incorrect, you will have five attempts before the system suggests you move forward. If you would like to stay on the screen beyond five attempts to practice more, you can do so by reloading the video.
b. On the non-video activities with speech recognition, you will have an unlimited number of attempts to practice the best possible answer.