—Because it is of great convenience.

—In spring.

—They ________ me 50 yuan.

—No, they don't.

—No, the tree is too ________.

—Because her daughter got a gold medal in the Olympic Games.

—Not really, my dear. You'd better stay at home for another day.

—Yes, I'd like to.

    There are four seasons in a year: spring, summer, autumn and winter.

    Spring is the best season of the year. The weather gets warmer and the days get longer. The crops begin to grow. The trees turn green and flowers come out.

    Summer comes after spring. It is the hottest season. It often rains and the crops grow fast. The best sport in summer is swimming. Children often go swimming in rivers and lakes.

    Autumn is a busy season. The days get shorter and the nights get longer. It is a harvest season. The farmers are busy. They are getting in the crops.

    Winter is the coldest season of the year. Sometimes it snows and the fields are all white. Skating is the best sport in winter. Many boys and girl often go skating. But the farmers are still busy. They are getting ready for the next year.

    Life is like the four seasons. Now I am very old, but when I was young, it was the spring of my life. I was born. I played a lot, and then I went to school. I learned many new things. There were happy days and sorrowful days: some days the Sun shone, and some days it didn't.

    At the age of twenty, I had a good job. I was strong and happy. Then I got married and had a child. During those days, I didn't have much time to think. Every day I was busy and worked very hard. And so, I started to get some white hair. The summer of my life passed quickly. Then the days got shorter. Leaves fell from the trees. My child was a university student, and then an engineer. My home was much quieter. I started walking more slowly. One day I stopped working. I had more time. I understood this was my autumn, a beautiful time when the trees changed their colours and gave us delicious fruit. But the days kept getting shorter and colder. Winter has come. I am older and weaker. I know I do not have many days left, but I will enjoy them till the end.