单项选择题


Questions 1 to 5 are based on a conversation. At the end of the conversation you will be given 10 seconds to answer each of the following five questions.
Now listen to the conversation.

Why did Mr. Simpson say that he couldn’t have been driving fast

A.He had only been driving fifty yards on the main road.
B.He had just come out into the main road.
C.He had stopped fifty yards away.
D.He had always driven under fifty miles an hour.