There are twelve months in a year. December, January and February are winter. March, April and May are spring. June, July and August are summer. September, October and November are autumn. What's your favourite season? In spring, it's warm. Farmers plant vegetables and fruit. The rain falls and the young plants begin to grow. In summer, the sun is hot. It makes the plants grow big and strong. Next comes autumn. It is cool. The plants are strong and healthy. The farmers bring them home and make delicious food. The food makes people grow strong and healthy. In winter, it is cold and snowy. The land (大地) goes to sleep. It needs a good rest. Do you like all the seasons?

       The Greens live at 87 King Street. In the morning, Mr. Green goes to work and the children go to school. The father takes them to school every day. Mrs. Green stays at home every day. She does housework. She eats her lunch at noon. In the afternoon, she usually visits her friends. They often drink tea together. The children come home from school at about five. They get home early.

       In the evening, the children always do their homework. Then they go to bed. Mr. Green usually reads his newspapers, but sometimes he and his wife watch TV. On Sundays, Mrs. Green usually goes shopping. And the children often help their mother do housework at home.

—It's zero ________.