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     She is Liu Hui ,a middle school student in Anhui, one of the “ stay-at-home children” in her town. Liu Hui is 12 years old and lives w ____ her sister. Her parents left home to make money in big cities when she was o ____  four. Liu Hui has to take c ____of her younger sister. They have to stay at home alone b ____ they have to go to school.
    “I used to feel s ____without my parents at home,” she said, “but now I know w ____  they do so. They have to go away to make money for u ____ so that we can live a better life.”
    Every day, Liu Hui gets up at 6:30 a.m. and cooks b ____ . Then the two girls go to school. They have supper at 6:00 p.m. Then Liu Hui does housework and h ____her sister with her homework. She usually goes to bed at 9:30 p.m.
    Though busy, Liu Hui is still the b ____  student in her class. She said, “My life is OK. But I still hope my parents will come back and live with us.”