阅读理解。 Christmas Day is on December 25th. People in the USA do many things to celebrate. Usually, people have a Christmas tree in their house and decorate it with ornaments( 装饰物) and lights, and put a star or angel( 天使) on the top. They have a big holiday dinner that day. There are gifts everywhere and Christmas songs come from every speaker( 扬声器). In many places of the United States, the weather is cold. It is usually snowy and icy. There are even snowstorms( 暴风雪) at some places. So people build snowmen, and play fun winter sports. 根据短文内容，符合短文内容的用T 表示，不符合用F 表示。 If people in the USA want to celebrate Christmas Day, they might_____ (     ) 1. plant a Christmas tree. (     )2. decorate a Christmas tree. (     )3. have a big dinner. (     )4. give gifts to each other. (     )5. sing Christmas songs. (     )6. make snowmen. (     )7. play winter sports. (     )8. paint their houses.