It was the first lesson after the summer holidays at a small school in England. The lesson was about the seasons of the year. “There are four seasons in the year,” said the teacher, “They are spring, summer, autumn, and winter. In spring, it is warm and everything begins to grow. In summer, it is hot and there are many flowers in the fields and gardens. In autumn, there are many vegetables and much fruit. Everybody likes to eat fruit. In winter, it is cold and it often rains. Sometimes there is snow on the ground.”
Here the teacher stopped and looked at one of the pupils ‘stop talking, Tom” he said. “Now listen to me. Can you tell us when is the best time of apples?”
“Yes, sir,” answered Tom. “It is when the farmer is not at home and there is no dog in the garden.”

Television first came about sixty years ago in the 1950s. Nowadays, it is one of the most (26) sources of entertainment for both the old and the young. Television brings (27) for children, world news, music and many other (28) . If someone likes sports, he can just choose the right sports (29) . It is not difficult for us to see why (30) is a TV set in almost every home today.