Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Article: Homework can put you in a badmood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay.
Answer: whether mood affects their learning ability
Solution: Researchers did experiments on kids in order to find out _ .
Reason: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.

Now, solve this instance: Article: Everybody knows the saying "Two steps forward and three steps back". That described my life pretty well as a single mom. I was raising two teenagers on a teacher's aide's salary. It wasn't nearly enough to cover the bills, so I moonlighted as a waitress. Every time I thought that I had found a solution to my money worries, something would fall through and I would end up feeling worse off than before. The next evening at the restaurant I tried on my apron, wishing I could be home with my kids. I walked up to my first table. Around it was a cheerful older couple. The woman gave me a smile that warmed me. I couldn't help but notice her unusual glass ring. "What a beautiful ring," I said. We chatted for a minute then I took their order and left. When I came back with their drinks, the woman held out her ring. "I would like to give this to you," she said. "Oh, no, I couldn't," I said, embarrassed. She gently placed the ring in my hand and closed my fingers around it. "It's yours," she said. "Please accept it and your things are going to be okay." Right there at their table in the middle of the restaurant I broke down in tears. "Thank you for giving me hope," I said. Long after that night, that sense of peace stayed with me. I knew the right job would come in time. Nine months later it did. I got a better position at another school and I started waitressing at a restaurant where I was allowed to spend more time with my kids. Now in these tough times, I have money worries again, but they don't get me down. I know things will turn out okay. And when I wear that unusual glass ring, I'm reminded I'm not alone.
Answer: had difficulty raising her family
Student:
From the saying "Two steps forward and three steps back", it means the writer _ .