单项选择题
Questions 27 and 28 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions.
When a car is speeding, a speed camera will be(). A. recording the speed limit of the area.
B. calculating how fast the car is going.
C. taking down the date and time of the area.
D. taking a picture of the car’s number plate.