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.

Let me give you an 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
The answer to this example can be: Researchers did experiments on kids in order to find out _ .
Here is why: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.

OK. solve this:
Article: At the beginning of my 8:00 a.m. class one Monday at UNLV , I cheerfully asked my students how their weekend had been. One young man said that his weekend had not been very good. The young man then proceeded to ask me why I always seemed to be so cheerful. His question reminded me of something I'd read somewhere before: "Every morning when you get up, you have a choice about how you want to approach life that day," I said to the young man. "I choose to be cheerful." "Let me give you an example," I continued. "In addition to teaching here at UNLV, I also teach out at the community college in Henderson. One day a few weeks ago I drove to Henderson. I exited the freeway and turned onto College Drive. But just then my car died. I tried to start it again, but the engine wouldn't _ . So I put my flashers on, grabbed my books, and marched down the road to the college." "As soon as I got there, the secretary in the Provost's office asked me what had happened. 'This is my lucky day', I replied, smiling." "Your car breaks down and today is your lucky day?" She was puzzled, "What do you mean?" "I live seventeen miles from here. I replied. My car could have broken down anywhere along the freeway. It didn't. Instead, it broke down in the perfect place: off the freeway, within walking distance of here. I'm still able to teach my class, and I've been able to arrange for the tow truck to meet me after class. If my car was meant to break down today, it couldn't have been arranged in a more convenient fashion."
Answer: choose to be cheerful every day
Answer:
If you want to be cheerful you should _ .