听一段材料，回答下面几个小题。Why do people build underground houses?
A. To save time and energy.
B. To save land and money.
C. To save land and energy.In what country have underground hosues been used for a long time?
A. Canada.
B. Japan.
C. China.What was the temperature inside Rinker's house when it was -22℃ outside?
A. 22℃.
B. 16℃.
C. -16℃.
Where is the common room?
A. Opposite the kitchen.
B. At the end of the corridor.
C. Near Yellowstone Park.
Where does the conversation probably take place?
A. At home. B. At a bus stop. C. At an office.
Where does the man probably work?
A. In a supermarket. B. In a bookstore.C. In a library.
Where will the man go for holiday?
A. Egypt. B. France.C.Germany.
Where is the woman now?
A. In Apple Street.
B. In King Street.
C. In Willow Street.