Update progress-and-ranking.md

docs/dashboard/user-guide/progress-and-ranking.md

@@ -77,12 +77,12 @@ You can drill down into a quiz or survey attempt by clicking on its name.
 
 ![page-my-quiz-single-attempt.png](../../screenshots/progress-and-ranking/page-my-quiz-single-attempt.png)
 
-A single quiz or survey attempt will display the results of that attempt. In case of the survey all the questions and associated selections will be shown. 
+A single quiz or survey attempt will display the results of that attempt. In the case of a survey, all questions and associated selections will be shown. 
 
-In case of a quiz they are number of possible conditions based on the status of the attempt:
-- `Passed` Quiz: all the questions and answer are shown
-- `Failed` Quiz: by default only manually graded (`Text Input`) answers are shown, `Single Choice` and `Multiple Choice` answers are not displayed; however if [Show Correct Answers On Failure](/dashboard/user-guide/quizzes-and-surveys.html#quiz-settings) setting is enabled all the answers are displayed
-- `Needs Grading` Quiz: answers are now displayed
+In the case of a quiz, there are a number of possible conditions based on the status of the attempt:
+- `Passed` Quiz: all the questions and answers are shown
+- `Failed` Quiz: by default only manually graded (`Text Input`) answers are shown, `Single Choice` and `Multiple Choice` answers are not displayed; however if [Show Correct Answers On Failure](/dashboard/user-guide/quizzes-and-surveys.html#quiz-settings) setting is enabled then all the answers are displayed
+- `Needs Grading` Quiz: answers are not displayed
 
 ## Badges Page