A mother wrote a heartfelt message to a mystery man    1     helped her and her baby daughter on a flight last week. The mother     2     (name) Kelsey Zwick said the stranger’s random (随意的) act of kindness warmed her heart.

“To the man in 2D,” Zwick wrote on Facebook,     3     (hope) the mystery man would see, “I don’t know you, but I imagine you saw us somewhere. I     4     (board) the plane with my daughter and took our window seat.”

“The flight attendant came over and told me you were waiting to switch seats,” Zwick wrote in her message to the man. “You were giving up your     5     (comfort), first-class seat to us. Not able to hold back    6     (tear), I cried while my daughter Lucy laughed! I smiled and thanked you as we switched but didn’t get to thank you     7     (proper).”

Zwick wrote the Facebook post to say thank you, “not just for the seat itself but for noticing,” she wrote. The man saw them and realized that things were not easy. And instead       8     just turning away, he stood up and helped.

She thanked the anonymous (不知姓名的) flyer “for deciding     9     (show) a random act of kindness to us. It reminded me how much good there is in this world. At       10     same time, we will pay it forward.”

The Time Capsule of Colorado Springs

In 1901, the citizens of Colorado Springs in the USA decided to collect everyday items and to seal (密封) them in a steel box. The box, marked “To be opened after midnight, December 31st, AD 2000”,     1    (store) in the Colorado College library.

One hundred years later, on the appointed day, 300 people gathered to watch the opening of the box. Many in the crowd were the descendants (后代) of people who     2    (place) things inside the box.

When the box was opened after midnight, the contents were     3    very good condition. There were newspapers, photographs, diaries, name cards, family trees, books and dozens of letters, including one     4    (write) by Theodore Roosevelt, who became the president of the USA later that year. One of Roosevelt’s friends lived in Colorado Springs at that time.

Many of the letters     5    (address) to their descendants. They described the hopes that the people of 1901 had for the people of the next century. At that time, Colorado Springs had just a few thousand residents. Now there are nearly half a million people     6    (live) there.

Colorado College Library has scanned the materials and put them on a website. Cecil Muller,     7    grandfather had placed a collection of post-cards in the box, said that the time capsule was a great treasure. “This is such a wonderful educational resource     8    we can learn a lot about our history,” he said. “I never knew my grandfather,     9    now I feel very close to him.”

In April 2001, a committee filled the time capsule with items from modern Colorado Springs and     10    (reseal) it for another hundred years.