The following sentences tell what the speaker did. Read them. Then listen to the material and rearrange the sentences in the right order. 1. 2. 3. 4. a. She decided to have a conversation with her roommate about her leaving lights on in unoccupied rooms. b. She hesitated to talk to her roommate about her behavior because she was not sure if it was really necessany. c. She couldn't tolerate her roommate's behavior and had an idea to have a talk with her. d. She learned that her roommate didn't even realize she had left the lights on.