Поставьте вопрос к подчеркнутому члену предложения. 1. As you sleep, the big muscles in your body relax. 2. Thousands of messages are sent to and from the brain. 3. Messages are carried to the brain by sensory nerves. 4. Your brain and your muscles start to relax, before long, you go to sleep. 5. Your body functions are controlled by the brain.