听下面一段独白,回答第1-3题。 1. Why do people build underground houses? A. To save money and energy. B. To save land and money. C. To save land and energy. 2. In which country had underground houses been used for a long time? A. China. B. Japan. C. Canada. 3. What was the temperature inside Rinker’s house when it was -22 ? outside? A. 22℃ B. 16 ℃ C. -16℃ |