.(2010·山东淄博高三第一次摸底考试)32. They will show ten topics — from using clean energy the environment — and give you a chance to make your own choice. A. to protect  
.(2010·山东淄博高三第一次摸底考试)32. They will show ten topics — from using clean energy _________ the environment — and give you a chance to make your own choice.