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: As we all know, it was Thomas Jefferson who wrote the Declaration of Independence (<<>> ). He wrote it in two weeks, and after a few changes, it was accepted by the Congress . As a result, he became famous. Born in 1743 in Virginia, Thomas Jefferson, a wonderful student at school and almost talented( ) lawyer later, was much interested in politics. Jefferson was elected the Governor of Virginia in 1779, and he was sent to France as the representative of the American government in 1784. Sixteen years later, at the age of 57, he was elected president after Washington and Adams. Far from a handsome man, he was tall with long arms and big hands. Jefferson, who was an amusing talker in conversation but a poor speaker, was generally good-natured. Jefferson was regarded as a defender of freedom in America. As a president, he protected the right of free speech. Interestingly enough, in his eight years as president, Jefferson never vetoed a bill which the Congress had passed. He did a lot in organizing the new University of Virginia. Thomas Jefferson died on July the fourth, 1826, the fiftieth anniversary of American Independence.
Answer: 1776
Answer:
From the passage we can infer that America won its independence in _ .