“ My name is Professor Roberts, and tonight, I’m going to tell you how to save energy in your homes. Most of us use too much energy. You can reduce this amount by: using low energy light bulbs, using solar energy, turning off unnecessary lights, preparing food before turning on the cooker. If you follow these simple rules, you will not only save energy but also keep the environment cleaner.” a) Does the professor tell us how to save energy? b) What should you do before turning on the stove?