For practice with inheritance see Chapter 9: Inheritance and Interfaces at the Practice-It website. This website requires a login but it is free. Click on the following link: Practice-It.
For practice with Free Response Questions see question 2 from 2010, question 4 from 2014, and questions 2 and 4 from the 2015 exam. See past free response questions by clicking on the following link: exam info.