题目内容：

A father and his son went to a kite-flying festival. The son was happy when he saw the sky filled with colorful kites. He wanted to fly a kite, too 1.

The son started to fly the kite. 2..After a while，the son said, “Father，it seems that the string(线）is stopping the kite from flying higher. If we cut it, it will be free and fly even higher. Can we cut it?” The father cut the string off of the reel (线轴).3..This made the little boy happy.

4. It soon fell to the ground. The son was surprised to see this. He asked his father, “I thought that after cutting the string, the kite would fly higher. Why did it fall down?”

The father explained, “5. ，but it was helping it stay in the sky. You helped the kite go up in the right direction using the string. But when you cut the string, it could no longer support the kite.”

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 the most.

A.The kite started to. go higher.

B.The string was not stopping the kite from going higher.

C.Soon it was high up in the sky.

D.The father then bought a kite for his son.

E.But then the kite started to come down slowly.