TASK DEFINITION: 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.
PROBLEM: Article: Two good friends, Sam and Jason, met with a car accident on their way home one night. The next morning, Sam woke up blind. His legs were broken. The doctor, Mr Lee was standing by his bed, looking at him with a thoughtful expression. When he saw Sam awake, he asked, "How are you feeling, Sam?" Sam smiled and said, "Not bad, Doctor. Thank you for doing the operation ." Mr Lee was moved by Sam. When he was leaving, Sam said, "Please don't tell Jason about it." "... OK." Mr Lee replied. Months later when Jason's wounds _ , Sam was still very sick. Neither could he see or walk. What he could do was just stay in his wheelchair all day long. At first, Jason stayed with him for a few days. But days later, Jason felt very discouraged and embarrassed to spend time staying with a disabled man like Sam. So he went to see Sam less and less. He made new friends. From then on, he didn't go to visit Sam any more. Sam didn't have any family or friends other than Jason. He felt very sad. Things went from bad to worse. Sam died a year later. When Jason came, Mr Lee gave a letter to him. It was from Sam. In the letter Sam said, "Dear Jason, I am disabled. But I want you to be a healthy man. So I gave my eyes to you so that you can enjoy life as a healthy man. Now you have new friends. I'm glad to see that you are as healthy and happy as usual. I'm glad you live a happy life. You are always my best friend ... ... Sam". When he finished reading the letter Mr Lee said, "I have promised that I will keep this a secret until Sam is gone. Now you know it." Jason stood there. Tears ran down his face.
Answer: Mr Lee saved both his and Jason's lives

SOLUTION: The reason why Sam thanked Mr Lee was that _ .

PROBLEM: Article: What could be cuter than your puppy giving his doggy friend a kiss on the nose? Nothing, really. But is your dog actual-fly planting a kiss on his friend? Yes, but that's only one of the reasons your dog may lick another dog's nose. Here are some other reasons why your dog may lick another dog's nose. During an introduction, a shy and lower-ranking dog will lower his head, avoid direct eye contact and gently extend his tongue to lick the nose of a more confident and high-ranking dog. The first dog licks the nose of the second dog to simply make it know that:he comes in peace. Dogs who are already friends will also trade kisses. Two strongly bonded dog pals will lick and clean each other. They give each other "dog kisses" showing friendship. Puppies also "kiss" their mothers, but it's not a gesture of love. When puppies stop suckling their mothers' tits for milk and start to eat semisolid food instead;they lick their mothers' mouths and noses in the hope of getting the mother to regurgitate some semi-digested food. So how to help your _ dog make friends with other dogs? You can carefully select confident-but-friendly and good-tempered dogs to play with your shy dog, to help him develop his social skills. Also consider taking him to a special training class that focuses on socialization and positive training technique. Do not disturb them when your two dogs play "kiss" briefly with each other. Sit back and enjoy this display of friendship. Then call them over and have them do a command such as "sit'' or "shake paws". Offer them treats as a reward for being good to each other. If you foster a dog and have three or more resident dogs, introduce the foster dog to your brood dog one at a time and let muzzle licking between them happen naturally. Start with your least reactive or most friendly dog. Never force an in production between the dogs because this can deepen the foster dog's submissiveness or spark a fight.
Answer: show he is friendly

SOLUTION: We know a shy and lower--ranking dog licks the nose of a higher-ranking dog to _ .

PROBLEM: Article: "It's really cool to have a dad who flies fighter jets,"thought 11-year-old Casey as she was watching him fly overhead. Living on an Air Force base was not as bad as some people might think. Casey rather enjoyed being around friends who had something in common with each other. They had their own school, bowling area, and movie theatre. She especially loved it when her dad would come home each day and greet her with a new joke and tickles. Today was different, though. When her dad walked into the room, he looked sad for some reason. He just kissed her on the forehead and told her mum that he needed to talk to her. Casey knew something was wrong. When her mum and dad came out of the other room, mum was crying. Dad sat down and began to explain that he has been called to go to Iraq to help with the war effort. Casey was so surprised that she couldn't speak for a moment. She began to feel tears in her eyes. How could she live without her dad for a whole year? Soon, the day came. Her dad was leaving. As Casey and her mom watched him climb up the steps to his cockpit, the tears began to flow and it felt like _ would never end. It was hard for Casey to believe that she wouldn't be seeing her dad for so long. They depended on him for so many things. Who would fix the broken window? Who would greet her with jokes and tickles at the end of the day? And then the thought hit her, " What if he doesn't make it home?" Casey began to sob more than ever.
Answer: her dad was going to fight abroad

SOLUTION:
According to the story, one thing Casey enjoyed on the base was that _ .