单项选择题

Questions 21 to 23 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions. Now listen to the news. Why was Windsor town blocked

A.Young people skirmished with the police.
B.There was a pop music festival in the park.
C.Policemen were injured in an accident in the street.
D.There was no hospital in the town.