Active vs. Passive

Active vs. passive
Would you change the following sentences? If not, why not? Rewrite those that need clarification.

1. The students quickly learned the points of the lecture, but they also forgot them quickly.

2. The boss himself informed the employees of the layoffs later in the day.

3. LeBron james missd a three-point shot with five seconds left.

4. The survey asked participants about their changes in political affiliation.

5. Raoul avoided tall buildings and mountain roads because he had such a fear of heights.

6. The Legislature is considering the bill.

7. The government has pursued the practice of covering up mistakes.

8. The class is reading the book.