Questions 7 to 10 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.
7. From the beginning of human history，information's travelling speed did NOT rely on_____.
A. ships' sailing speed
B. horses' running speed
C. people's walking speed
D. birds' flying speed
8. People stopped using birds to carry messages because_____.
A. it took too much time
B. it was not a way
C. birds were easy to be caught
D. birds were easy to die
9. Which of the following was the first to be used to send information via wires and electricity?
A. Radio.
B? Telegraph.
C. Phonograph.
D. Television.
10. People could obtain the latest news from newspapers since_____.
A. 1830
B. 1900
C. 1919
D. 1930
