Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. Why did the taxi driver ask the speaker how long he has been in the US
A.He was wondering if the speaker was used to living in America. B.He was trying to show friendliness to the speaker. C.He wanted to keep their conversation going. D.He believed the speaker was a foreigner.