The traffic lights are the same in every country．There are always three lights red．yellow and green．Red means“Stop”．Yellow means“Wait”, and green means“Go”．In China, drivers drive on the right side of the road．In the US，drivers drive on the right side，too．In England and Australia，however, drivers drive on the left side of the road．If you go by car，by bike or on foot，you must know the traffic rules．

    Thanksgiving is a family holiday in autumn in Canada and the USA. In Canada, Thanksgiving is in October. In the USA, it is in November. On Thanksgiving, people have a big dinner with their family. They usually eat roast turkey and other delicious food. They also tell Thanksgiving stories and give thanks to their friends and families.

    In China, we also have a family holiday in autumn. It is Mid-Autumn Festival. People get together with their families to have a big dinner, too. They eat mooncakes, talk happily and enjoy looking at the beautiful round moon. Mooncakes are round like the full moon. Some people cannot go back home, but they can look at the moon and think about their families.

    My name is Sam. My birthday is on July 25th. On that day my friends came to my family and had a big birthday party for me. My mother made a birthday cake for me in the morning. It's big and tasty. My father gave me a football because I like playing football. My friends gave me a lot of presents and some birthday cards. We sang and danced. We ate food and fruit. We played games together. We had a good time.

    There are forty students in our class. There are ten boys. There are thirty girls

    Don't throw things out of the window. It's dangerous. You might hurt someone. Don't cook here. It's dangerous. A small fire can become a big one. Be careful! Look out for cars. Don't go against the traffic. Don't open the door for a stranger. It's dangerous.