Have you ever wondered where Lego(乐高积木)came from? Like many great inventions,the story is not just one of a great idea,     1     one of a ton of hard work and perseverance（毅力）.

The story started in Denmark. Ole Christiansen was a carpenter     2     was struggling with his small business. His wife died     3    (short) after his fourth son was born. He had to work hard to support his family alone. He started making wood toys,but they didn't sell well. He decided his toys needed a name,and he chose     4     name"Lego".

Unfortunately, several years later, his workshop     5     (burn) to the ground. Soon,he started to make a few plastic toys. He got the idea to create a “system" of toys that would build up kids'     6     (imagine) and creativity. He decided to stop     7     (make) wood toys and focus only on the connected plastic toys. Then he started to build more and more kinds of     8     (model). Each one had to be of the     9     (high) quality, which can be reflected in Lego's motto —“Only the best is good enough. ”

Thanks to their perseverance, kids can enjoy Lego toys, movies, amusement parks and clothing. But none of this would have existed at that time if they     10     (give up) when times got hard.

3 . Anvitha Vijay, who is only nine years old, has built two educational apps. One is Smartkins Animals, which helps many    1    (child) identify more than 100 animals and     2    other Rainbow Colors, which teaches kids colors.

With the help of YouTube videos, the young girl from Melbourne, Australia, learned to code (编程)at age 7 all by    3    (she). Soon, she was trying her hand at making apps. “When I first got my iPad, I     4     (attract)immediately by all the apps on it,” she told TFK. “It wasn’t long     5    I wanted to create my own.”

Anvitha’s skills won her scholarship to attend a big tech conference hosted by Apple in San Francisco, California. There, she got tips from the professionals and went to workshops     6    she learned about the latest software for app building. all that training led to an idea for a third app. This one,    7    (call) GoalsHi, inspires kids to practice good habits.

Anvitha’s goal is to continue crating technology that helps kids learn while    8    (have)fun. But what’s even more     9    (importance) to her is that the world sees the power of technology in kids’ hands. “The more training we get in tech at an early age,” she says, “the    10    (good)chance we will have of becoming innovation champions who will one day change the world.”