任务型阅读。 There was a farmer. He had four sons. 2 The farmer was very worried about his sons, but he didn't know what to do. The man grew old and fell ill. When he was dying (垂死的), he told all his sons that he hid (隐藏) lots of money on his farm. After the farmer died, his son began to look for the money. They spent a few days digging (挖掘) the farm, but could find nothing. A neighbor said to him 'Since you dug the ground, why not plant some seeds (种子) in it?' The four sons planted the seeds in the ground. After a few weeks the seeds came up, and in a few weeks more the seeds grow into plants. A few weeks later, the plants started to bear grains (谷物). Later the four sons harvested them and sold them at the market. 3 At last, they knew what their farmer meant by his words. 根据短文内容，完成下列任务。 任务1：猜测词义 1.The word 'since' means '_____' in Chinese. A. 因为 B. 既然 C. 虽然 任务2：将下面两个句子放在文中合适的位置 2. _____   3. _____ A. They made lots of money. B. They were very lazy and did not do anything. 任务3：将文中画线句子改写成同义句 4.They spent a few days digging the farm. It _____ _____ them a few days _____ _____ the farm. 任务4：回答问题 5. What do you learn from the passage? ______________________________________