单项选择题


Questions 11 to 14 are based on the passage you have just heard.
How does one make a long distance call to Boston

A.First dial 555-2121, next the area code and last the number.
B.First dial 555-1212, next the city code and last the number.
C.First dial 555-1212 and then the phone number.
D.First dial 555-1212, next the area code and last the number.