【一】 A daughter was tired of struggling (努力) all the time. It seemed that after one problem was solved, another one soon followed. Her father, a cook, took her to the ________. He filled three pots with water and put each on a big fire. When the three pots began to boil, he put some potatoes in the first pot, some ________ in the second pot, and some coffee beans in the third pot. Twenty minutes later,