单项选择题


In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.
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.
What happened in London a few months ago

A.One of the bridges between North and South London collapsed.
B.The heart of London was flooded.
C.An emergency exercise was conducted.
D.100 people in the suburbs were drowned.