Task 3 The Chang, jiang River is not the longest, the widest, or the most powerful river in the world. But in one sense it is the most important river, because it serves more people than any other river. In every way the Changjiang River is China’s life stream. The Changjiang isn’t just a trade river, a high way along which goods are picked up and sent. It is an agricultural river as well. A lot of irrigation ditches go out from it to millions of tiny garden-size farms. There men and women work endlessly with very old hand tools -planting, watering, fertilizing, weeding, harvesting, raising the family’s food and raising the nation’s food. It begins somewhere high in the place north of Tibet, running down from a three-mile height, tt goes for hundreds of miles, shouting loud through valleys. Only in the last 1,000 miles of its 3,900-mile journey does the Changjiang River become the sunny and cheerful river. Where is the Changjiang River’s starting spot It may be ______
A．somewhere in the central part of China B．somewhere on the borders of China and India C．somewhere in the place north to China D．somewhere in the place north of Tibet