我国是民族众多的国家，共有56个民族，其中人口最多的少数民族是（    ）

    Jack was busy last Sunday. His parents were not at home. He walked to the park in the morning. He read English books and did sports there.Then he visited his friend Tom. Tom is his best friend. He is younger and shorter than Jack.They played puzzles together.After lunch, Jack went back home. In the afternoon, Jack cleaned the room and washed the clothes. After finishing these things, his parents got home.

    Jack had a nice dinner with his parents. At 10 o'clock, he went to bed.