单项选择题

Questions 11 -13 are based on the following talk about the presidential inauguration. You now have 15 seconds to read Questions 11 -13.
The main purpose of this passage is to ______.

A．introduce the process of presidential inauguration
B．introduce the new president
C．introduce how presidents are elected
D．introduce the wife of Mr. Bush

Questions 11 -13 are based on the following talk about the presidential inauguration. You now have 15 seconds to read Questions 11 -13. The main purpose of this passage is to ______.

Questions 11 -13 are based on the following talk about the presidential inauguration. You now have 15 seconds to read Questions 11 -13.
The main purpose of this passage is to ______.