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This button will take you back to the previous question when you're doing an exercise.
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This button will take you back to the next question when you're doing an exercise.
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This button will take you back to the lesson index.
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During a fill-in-the-blank exercise, you click the Check button to have the computer
check to see if you entered the correct answer. (You get two tries to fill in the
blanks correctly.)
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If you don't know how to fill in a blank during an exercise, click the Hint button to
turn the question into a multiple-choice question.
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Some exercises have audio so that you can listen to the correct response. When
sound is on, you'll see this icon. If you click it, that will turn the sound off.
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When sound is off, you'll see this icon. If you click it, that will turn the
sound on again for the next question.
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