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: Joey is loyal, encouraging and self-sacrificing, always putting others' interests ahead of his own. He is a hard worker, who also loves to run and play. In short, he's an ideal friend and a heroic character. Here is the thing: Joey is a horse, who appears as the main character in Steven Spielberg's new film War Horse. It is based on Michael Morpurgo's 1982 novel, which also caused the same-titled Tony Awards winning play. The film follows the saga of Joey, a racehorse that's trained for farm work under the loving care of Albert (Jeremy Irvine )after Albert's drunk father Ted(Peter Mullan ) overpays for the animal at auction . Then the World War I tears Albert and Joey apart. Joey is sold into the war effort for the British and starts his episodic adventures in Europe. Splendidly staged, the battle plots in the film are visually and impressive. And with Spielberg's unique, top-notch direction and storytelling skills, War Horse cannot escape its episodic nature, calling to mind another Spielberg film about the horrors of war and its effects upon soldiers and civilians--Saving Private Ryan. While that film shocked with horrific scenes of bleeding, it relied on a company of easily-described characters and a focused storyline to present heroic themes. Like Saving Private Ryan, War Horse clings to a series of characters, not only Albert, but also British officers, French civilians and German soldiers, who display courage in the face of danger. Everyone who comes in contact with Joey is either already in touch with their inner angel or is quickly moved to become more humane. Although none of this covers the fact that we've seen this stuff elsewhere before, the lovely sentiment will steal your heart. And the emotional signature of Spielberg can be felt as he establishes the relationship between the boy and the horse and the mood of the piece - there will be tears. Therefore, calling this beautiful, dramatically incomplete film " Saving Private Joey", is entirely justifiable. 
 Answer: tells the story happening in the Second World War
In common with " Saving Private Ryan", the film  War Horse    _    .

Article: Cloud seeding is a method of artificially causing clouds to produce precipitation   in the form of rain or snow.Cloud seeding has also been used in attempts to modify the severity of hail storms and hurricanes.The effectiveness of cloud seeding remains controversial  .but it continues to be used in some regions to try to increase rainfall for agriculture and to build snow packs for water supplies and power production. Cloud seeding was developed by American scientists Irving Langmuir and Vincent Joseph Schaefer during and after World War II.Their work began as an effort to learn more about the buildup of ice on airplane wings, and eventually led them to attempt to create rainfall by releasing several pounds of crushed frozen carbon dioxide into a cloud from an airplane.In this form, the carbon dioxide is called dry ice.On November 13, 1946, the technique appeared to produce snow directly under the cloud; the snow then turned to rain as it fell to the ground. For their experiment, Langmuir and Schaefer selected a supercooled cloud, one in which the water droplets remain liquid in subfreezing temperatures.Their theory was that small grains of dry ice falling through the cloud would cause tiny droplets of water vapor in the cloud to freeze into crystals that attracted more water vapor.Their theory proved to be correct and eventually the crystals became heavy enough to fall from the cloud as snow.As the snow reached the warmer temperatures closer to the ground, it melted and became rain. Another scientist, Bernard Vonnegut, produced a method of cloud seeding using silver iodide  .He used particles of silver iodide because its crystal structure resembled that of ice in clouds.Silver iodide also had practical advantages over frozen carbon dioxide It could be stored at room temperature and did not require an airplane as a delivery mechanism.Instead, silver iodide crystals could be fired by cannons   high into the air, where wind carried them into the clouds. 
 Answer: it is similar
Bernard chose silver iodide as a method of cloud seeding because  _  .

Article: Have you ever heard the saying " _ "? Here is how a new teacher made friends with the girls and boys in her class on the first day of school. As the bell rang, the teacher smiled at each girl and boy. Then she said in a quiet voice, "Good morning. How nice it is to have all of you in my class this year. I'd like to know each of you. I am sure we will enjoy working together." Everyone felt that she meant what she said because of her sweet voice and her friendly look. She told the girls and boys her name and wrote it on the blackboard. Then she told them some of the things she liked to do and she was hoping to do with them during the year. Then she said to the class, "Now you know my name and the things I like and I want to know your names and the things you like. Then I will feel that I know you." Could you make friends by doing the same as this teacher did? One way of getting to know girls and boys in your class is to find out more about them. It is often easy to be friends with those people who have the same hobbies with you. You play the same games and go on journeys together. You may find that some new comers in your class miss their old friends and feel strange and lonely. You can invite them to take a walk or to ride bikes with you. You will find many things in common to talk about. Just talking together in a friendly manner is one good way to make friends. 
 Answer: meant she wanted to tell the boys and girls something interesting

The teacher's sweet voice and her friendly look   _  .

