My sister went to see a doctor last week. She supposed she (have) some health problems. Her first problem was that she often had back pain she always had to sit for a long time to work in her office. The pain almost drove (she) mad because she couldn't pay attention to work. The doctor suggested that she should stand up and watch outside after (sit) for two hours. She could also do some sports like climbing stairs. The (two) problem was that her eyes often felt tired and uncomfortable. This brought much trouble her. The reason was that she often used her mobile phone the light off at night. The doctor said it was actually (harm) to people's eyes. If she wanted to use her mobile phone at night, she must keep the light , or the light of the mobile phone may hurt her eyes. Her last problem was she had a stomachache because she didn't eat anything for supper. She was on a diet. The doctor said the idea was (fool). She could have anything for supper but she could have it three hours before she went to bed.