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: My husband is reading The Secret Garden (<<>> )aloud to our kids. They are at the part where Mary has told Colin that she's found the garden her mother loved. It's an exciting moment. But the passage I'm waiting for is a few chapters on, after Colin has tasted his first breaths of fresh air and Mary has grown strong running in the garden. It's just a detail, but my kids will notice it: a delicious description of toasted potatoes and eggs. We have a tradition of trying foods from the books we read aloud. It started when we read Elizabeth Enright's The Saturdays, and one of the boys asked, "What are petit fours ?" An answer, my husband and I felt, wouldn't be as good as a sample. So one Saturday we all sat down having tea and little cakes, covered with pink, green, and yellow. It was exciting for the kids to try a dessert they had learned about in a book. The petit fours they tried didn't tell them what it was like to live in New York City 60 years ago, but tasting them made the book's words alive. Later, when we read C.S.Lewis's The Lion, the Witch and the Wardrobe, we had _ . We read The Penderwicks, written by Jeanne Birdsall, and had gingerbread .We read Paddington Bear and tried marmalade . Soon we will reach the part of The Secret Garden where Mary, Colin, and Dickon roast potatoes and eggs in a small oven in the earth. My kids will go out into the woods to find the perfect place for an oven of our own. Yes, we've eaten potatoes and eggs, but never in the open air. The world that a good book creates is whole and real, but it lies flat on the page until a reader gives life to it.
Answer: introduce some interesting books
Student:
The text is written mainly to _ .