What is the relationship between the speakers（）

A．Sister and brother.
B．Boss and employee.
C．Teacher and student.

cut off

let down

put away

set up

おなかが　いたいんです

おなかが 　いたいでしょう

おなかが　いたいんですから

おな かが　いたく　なりますか

正确

错误

Text 3 The way people in the US travel to and from work has changed a lot in the last fifty years. Before the Second World War, most people lived in the town or the city where they worked. Almost everyone either walked to work or used a good inexpensive transportation system. Many of these systems were electrified and ran on tracks, so they used very little energy. After 1945, the United States government built many new roads and highways. People moved farther and farther from the cities where they worked because they could drive their cars on these new roads from their suburban (郊区的) homes to work in the city. Some of the big car makers also bought the electrified transportation systems so they could destroy them. As people stopped using public transportation, cities spent less money to fix old buses and trains or to buy new ones. Public transportation got worse and worse. In the late 1960s, people found out that the increase in the use of cars led to many problems. There were always too many cars for the highway system, and terrible traffic problems developed. People were spending hours in traffic jams getting to and from work every day. In addition, the air in many cities became dirty because of pollution from millions of cars, and many people died in traffic accidents. As people began to get worried about how the use of cars was hurting the environment, cities began to spend more money on public transportation again so fewer people would have to drive cars. When gas became very expensive in the mid-1970s, the number of people taking public transportation began to increase. Because it is terribly expensive to build new public transportation systems, it is very difficult to make big changes in the way people travel, but an increase in the use of public transportation has begun.

Pilot Cabuk was at the control seat calling out his climb checklist after taking off. Keeping him company in the copilot’s seat was the plane’s owner, Doug White. Cabuk began a __36__ call to air traffic controllers in Miami, but __37__ his voice lowered and his head fell to his chest. White __38__ him on the shoulder and tried __39__ him awake, but he was still. The plane was a mile above the earth, climbing up at a speed of 2, 000 feet per minute. And no one on board knew __40__ to get it safely to the __41__. White got on the radio. “Miami,” he said in a trembling (颤抖的) voice, “I’ve got to __42__ —an emergency (紧急状态). My pilot fell ill and is in a terrible state. I need __43__ up here.” Nate Henkels took the __44__ at the Miami center. He was __45__; few aircraft had been as large as this one. Henkels instructed White to __46__ at the height of 12, 000 feet. But the plane kept __47__. “Don’t worry. Pull back gently.” Henkels said, fighting his own __48__. The “gently” part proved __49__. White turned left and moved around, which __50__ him on the proper course. “You’re doing well,” said Henkels. His __51__ voice had become White’s lifeline. Gradually White __52__ the plane and then dropped the landing gear (起落架). Fifteen minutes later, the plane was __53__ on the runway, shining under the Florida sun after a perfect __54__. Inside the Miami control center, __55__ broke out.

正确

错误

听下面一段独白，回答第17至第20题。