单项选择题


Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.
What is the main concern of talk

A．How the tone of a piano is affected by its shape.
B．How to measure a piano’s resonance.
C．How to improve your performance by choosing the right piano.
D．How size makes a piano more expensive.
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单项选择题
According to the passage, before the agreement was announced Monday, the two sides had been bargaining for ______days.
A．4
B．5
C．6
D．7
单项选择题
What was the topic of their conversation last time
A．The US school system.
B．The Continental school system.
C．The Japanese school system.
D．The Indian school system.
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