The Spring and Autumn and the Warring States Period was an age of cultural development in China. Here are some great characters of that time.
Shang Yang reformed many fields. Before the reform, he placed a log（原木）at the gate and promised, “If someone can move the log, he will get a reward.” No one believed him until someone moved the log. Shang Yang really gave him a reward.
Do you know Lu Ban lock? It is a removable toy. Lu Ban made it for his son. His son studied all night before opening it. He also invented many tools and weapons(武器).
Li Bing was an expert in water projects. He set up many water projects. Dujiangyan is the most famous. It made water helpful to the people.
Once, an official fell unconscious(昏迷的). Everyone thought he was dead except Bian Que. Bian Que felt his weak pulse and said, “He will wake up in three days.” Two days later, the official woke up. Everyone was amazed.

When Boya played, even the horses looked up, stopped eating and listened to his music. Boya's friend, Zhong Ziqi, understood his music. They liked each other. After Ziqi died, Boya broke his guqin and never played it any more.
() 1. Why did Shang Yang make a promise before the reform?
A. To give people a reward.
B. To sell the log at the market.
C. To fix the gate of the building.
D. To make people believe him.
() 2. Why did Boya break his guqin after Ziqi's death?
A. Because his guqin was too old.
B. Because he lost his best listener.
C. Because he was angry with other people.
D. Because he wanted to invent a new instrument.
() 3. What can we learn from the stories of these five characters?
A. They were all good at music.
B. They all lived in the same city.
C. They all had many close friends.
D. They made contributions in different fields.