根据短文内容判断正(A)误(B)。 There was once a farmer who had a fine olive orchard (橄榄园). He was very hardworking, and the farm always grew well under his care. But he knew that his three sons didn't like the farm work, and were eager to make wealth, through adventure. When the farmer was old, and felt that his time had come to die, he called the three sons to him and said,  'My sons, there is a pot of gold hidden in the olive orchard.  Dig for it, if you wish it. ' The sons tried to get him to tell them in what part of the orchard the gold was hidden; but he would tell them nothing more. After the farmer was dead, the sons went to work to find the pot of gold; since they did not know where the hiding-place was, they agreed to begin in a line, at one end of the orchard, and to dig until one of them should find the money. They dug until they had tumed up the soil from one end of the orchard to the other, round the tree- roots and between them.  But no pot of gold was to be found.  It seemed as if someone must have stolen it, or as if the farmer had been wandering in his wits. The three sons were bitterly disappointed to have all their work for nothing. The next olive season, the olive trees in the orchard bore more fruit than they had ever given; when it was sold, it gave the sons a whole pot of gold. And when they saw how much money had come from the orchard, they suddenly understood what the wise father had meant when he said, 'There is gold hidden in the orchard.  Dig for it, if you wish it. ' (     )1. The father forgot the spot where he hid the pot of god. (     )2. The three sons were not so interested in their father's words that they didn't look for the gold. (     )3. The orchard was all turned up by the three sons. (     )4. At last they realized what the whole pot of gold meant. (     )5. The story tells us we should work hard if we want to get success.