Have you ever     19     (hear) of Stonehenge? Every year it     20     (receive) more than 750,000 visitors. People like to go to this place especially in June as they want to see the sun     21     (rise) on the longest day of the year.

For many years, historians believed Stonehenge was a temple where ancient leaders     22     (try) to communicate with the gods.

However, historian Paul Stoker thinks this can’t     23     (be) true because Stonehenge     24     (build) so many centuries ago. Other people believe the stones have a medical purpose. They think the stones can prevent illness and     25     (keep) people healthy.

No one is sure what Stonehenge was used for. Some think it might be a burial place or a place     26     (honor) ancestors. Others think it was built to celebrate a victory over an enemy.

One day, a father and his son went to a kite-flying festival. When they arrived, there were already many adults and their children playing in the park. When the son saw the sky filled with     27     kites in different shapes, he was excited and wanted to get one too. His father agreed to buy one for him. So they went to a kite shop and     28     a beautiful one.

With the string (线) in hand, the son started     29     the kite. Soon, the kite was high up in the sky. After a while, the son said, “Father, it seems that the string is stopping the kite from flying higher. If we cut it, it will be free and fly even higer. Can we cut it?” The father didn’t reply, but just cut the string off the reel (线轴). Suddenly the kite began to go     30    , which made the son much happier.

However, to his surprise, the kite was coming down. They waited for quite some time.     31    , it fell onto the grass. The son felt upset and asked, “I thought that after cutting the string, the kite would fly higher. Why did it fall down?”

The father smiled and said, “The role of the string was not stopping the kite from flying higher,     32     helping it stay in the sky, because the kite     33     can’t fly up. By using the string you help the kite go up in the right     34    . When you cut the string, it could not support the kite.”

In our life, we may sometimes feel like there are certain things that are holding us back and stopping us from growing. But in fact, these might be the things that support us     35    . We can really grow up and become stronger by realizing the     36     of these things.