Correct the following sentences:

1. Yahoo is led by a woman but HP is not.

2. Facebook is a publicly traded company, but was not before 2000.

3. Both Avaya or Panasonic offers excellent phone systems.

4. Dancing in the rain is a favorite pastime for most children.

5. Susan enjoys traveling to Vermont; she always tries to hike, ski, and fishing.

6. The class of ACT students try to learn effectively.

7. Prior to 2000, many computer experts have worried about Y2K.

8. Since 2001, most Americans had worried about Al Quaeda and the Taliban.

9. Operating machinery and to try to move a tractor are dangerous tasks.

10. For who are we buying the present?

11. The financial advisors recently evaluated they’re portfolios.

12. The financial advisor’s portfolios have been questioned by investors.

13. I still love yesterday’s music.

14. The dog chews its’ bone.

15. Tutoring students are rewarding.

16. On his way to tutoring, Jacob and Joe called Sarah to tell her they were running late.