In junior high school in America, kids study English, writing, math, physics, biology, music and art. At 12 o'clock, the students eat lunch at school. They have meat, vegetables, fruit, bread and a drink, but they like hot dogs and hamburgers best. American kids like sugar, and after the meal they can have a small piece of cake. Students sleep for a short time after lunch. They begin classes at 1:30 in the afternoon. They go to school on weekdays and have classes for six hours every day and then return home. Parents let their kids play or watch TV until dinner at 6:00 p. m. After dinner, they do their homework. Sometimes kids and their parents have a family activity after dinner. The American kids usually have dinner  _   in the evening.
at five o'clock at six thirty at six o'clock at five thirty