In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Article: Disposing of waste has been a problem since humans started producing it. As more and more people choose to live close together in cities,the waste disposal problem becomes increasingly difficult. During the eighteenth century,it was usual for several neighboring towns to get together to select a faraway spot as a dump site. People would transport household rubbish,rotted wood and old possessions to the site. Regularly some of the trash was burned and the rest was buried. The unpleasant sights and smells caused no problem because nobody lived close by. Factories and some other industrial sites also had waste to be disposed of. Those located on rivers often just poured the unwanted remains into the water. Others built huge burners with chimneys to deal with the problem. Several facts make these choices unacceptable to modern society. The first problem is space. Dumps , are most needed in heavily populated areas. Such areas rarely have empty land suitable. Farm areas are refusing to accept rubbish from elsewhere,cheap land in major city areas to dispose wastes is nonexistent . Awareness of pollution dangers has resulted in more strict rules of waste disposal. Pollution of rivers,ground water,land and air is a price people can no longer pay to get rid of waste. The amount of waste,however, continues to grow. Recycling efforts have become commonplace,and many towns require their people to take part. Even the most efficient recycling programs,however,can hope to deal with only about 50 percent of a city's reusable waste,so more people should be involved in recycling programs.
Answer: Waste Disposal Problem
The most suitable title for this passage would be _ .

Article: Occasionally, my father came back drunk. Late at night, he beat on the door, pleading to my mother to open it .He was on his way home from drinking, gambling, or some combination thereof, misspending money that we could have used and wasting time that we desperately needed. It was the late-1970s. My parents were separated. My mother was now raising a group of boys on her own. My father spouted off about what he planned to do for us, buy for us.In fact, he had no intention of doing anything. As a father who was supposed to love us, in fact, he lacked the understanding of what it truly meant to love a child--or to hurt one. To him, this was a harmless game that kept us excited and begging. In fact, it was a cruel, corrosive lie. I lost faith in his words and in him. I wanted to stop caring, but I couldn't. Maybe it was his own complicated relationship to his father and his father's family that caused him cold. Maybe it was the pain and guilt associated with a life of misfortune. Who knows. Whatever it was, it stole him from us, and particularly from me. While my brothers talked about breaking and fixing things, I spent many of my evenings reading and wondering. My favorite books were a set of encyclopedias given by my uncle. They allowed me to explore the world beyond my world, to travel without leaving, to dream dreams greater than my life would otherwise have supported. But losing myself in my own mind also meant that I was completely lost to my father. Not understanding me, he simply ignored me--not just emotionally, but physically as well. Never once did he hug me, never once a pat on the back or a hand on the shoulder or a tousling of the hair. My best memories of him were from his episodic attempts at engagement with us. During the longest of these episodes , once every month or two, he would come pick us up and drive us down the interstate to Trucker's Paradise, a seedy, smoke-filled, truck stop with gas pumps, a convenience store, a small dining area and a game room through a door in the back. My dad gave each of us a handful of quarters, and we played until they were gone. He sat up front in the dining area, drinking coffee and being particular about the restaurant's measly offerings. I loved these days. To me, Trucker's Paradise was paradise. The quarters and the games were fun but easily forgotten. It was the presence of my father that was most treasured. But, of course, these trips were short-lived. It wasn't until I was much older that I would find something that I would be able to _ as evidence of my father's love. When the Commodore 64 personal computer debuted, I convinced myself that I had to have it even though its price was out of my mother's range. So I decided to earn the money myself. I mowed every yard I could find that summer for a few dollars each, yet it still wasn't enough. So my dad agreed to help me raise the rest of the money by driving me to one of the watermelon farms south of town, loading up his truck with wholesale melons and driving me around to sell them. He came for me before daybreak. We made small talk, but it didn't matter. The fact that he was talking to me was all that mattered. I was a teenager by then, but this was the first time that I had ever spent time alone with him. He laughed and repeatedly introduced me as "my boy," a phrase he relayed with a sense of pride. It was one of the best days of my life. Although he had never told me that he loved me, I would _ that day as the greatest evidence of that fact. He had never intended me any wrong. He just didn't know how to love me right. He wasn't a mean man. So I took these random episodes and _ them like a thing most precious, storing them in my mind for the long stretches of coldness when a warm memory would prove most useful. It just goes to show that no matter how friendless the father, no matter how deep the damage, no matter how shattered the bond, there is still time, still space, still a need for even the smallest bit of evidence of a father's love. "My boy."
Answer: shy but thoughtful
From the passage, the father was _ in the writer's memory.

Article: It is well-known that when an individual joins a group, he tends to accept the group's standards of behavior and thinking. Many illustrations could be given of this from everyday life, but what is of particular interest to psychologists is the extent to which people's judgments and opinions can be changed as a result of group pressure, Asch and others noticed that people in a group will agree to statements that are contrary to the evidence of their senses. It would be a mistake to think that only particularly docile people are chosen to take part in experiments of this type. Usually highly intelligent and independent people are used. In a typical experiment, this is what may happen. The experimenter asks for volunteers to join a group which is investigating visual perception .The victims are not, therefore, aware of the real purpose of the experiment. Each volunteer is taken to a room where he finds a group of about seven people who are cooperating with the experimenter. The group is shown a standard card which contains a single line. They are then asked to look at a second card. This has three lines on it. One is obviously longer than the line on the first card; one is shorter and one the same length. They have to say which line on the second card is the same length as the line on the standard card. The other members of the group answer first but what the volunteer does not know is that they have been told to pick one of the wrong lines. When his turn comes, he is faced with the unanimous opinion of the rest of the group-all the others have chosen line A but he quite clearly sees line B as correct. What will be do? According to Asch, more than half of the vietims chosen will change their opinion. What is equally surprising is that, when interviewed about their answers, most explained that they knew the group choice was incorrect but that they gave in to the pressure of the group because they thought they must be suffering from an optical illusion , or because they were afraid of being different.
Answer: the degree of changes of people's opinions
The psychologists are particularly interested in_.