3 . “You’re very talented, dear. I hope everything turns out great. I’ll tell my friends about the animal shelter (避难处),” a kind old lady told Conrad, who smiled ______ as she left $20 in his hat.

Conrad was proud of what he was doing and people in the ______ loved hearing him sing and play his ______. The 11-year-old didn’t know how much money the local animal shelter _____.

His mother, Sandy, worked at the shelter and had always been a(n) ______ animal lover. Therefore, he grew to be fond of animals as well. ______, he recently heard his mother telling a friend that the shelter was not doing well. It ______ on donations (捐赠), and not much donations were ______. This made the boy very ______. So he grabbed his guitar and ______ the local town park to sing and play.

He placed a ______ to tell people he was doing it to raise (募捐) money for the animal shelter, which helped greatly. People ______ and gave him mostly $1 and change, and others, such as the kind old lady, were more ______. He was grateful to everyone and continued playing songs and ______ money.

Raise your kids to love animals, and they’ll be better people. Caring for innocent animals makes people more selfless, ______ and caring. That’s why Conrad used his skills to raise funds, knowing how vital the shelter was.

4 . After decades of exploring the moon, a dramatic vision is finally becoming reality. The Guardian recently reported that a project called Lunar Codex is planning to send and store over 30,000 works on the moon from artists, writers, filmmakers, and musicians from over 150 countries and regions. The goods to be stored range from novels and paintings to music, films，and even soil from Earth.

In fact, this is not the first time that people have tried sending human legacies (遗产) to outer space. In 1969, the Apollo 12 mission carried a ceramic piece with drawings. In 1971, the Apollo 15 staff left a sculpture to honor those who had died in space exploration. What’s more famous is the Golden Record carried by spacecraft Voyager 1 and 2 from NASA in 1977, which contains human language, music and images. For example, a piece of Chinese guqin music, called Flowing Streams was included in it.

Although we don’t know who determines which symbols of human legacy get sent out to space in most projects, it’s obvious that the criteria keep changing. In the past，space heritage products only focused on space-related works; but gradually, more human-related contemporary goods which held great importance in their respective eras have been added to the list. In the Lunar Codex, films, diverse art and literary works produced by women, disabled artists, and even AI have been collected for the first time to be sent to the moon.

These changing criteria also leave space for ordinary people to imagine and think. Many people are now trying to store their DNA information digitally. Will people be able to find even more surprising and inventive ways to preserve their legacy in the future? Only time can tell.