问题
单项选择题
| Questions 15-18 |
A．(A) When we are touring around an opera house.
B．(B) When we are watching a TV series.
C．(C) When we are appreciating background music in a restaurant.
D．(D) When we are attending a lecture at college.
答案
参考答案：D
解析：[听力原文]According to the talk, when will our critical listening become the most active and most helpful