单项选择题

Questions 7 and 8 are based on the following news. At the end of the news item, you will be given 20 seconds to answer the questions. Now listen to the news. What is the main idea of the news item

A. Half a million of tuberculosis patients were tested for HIV.
B. The approach in fighting tuberculosis works.
C. 2.3 million people were cured of tuberculosis.
D. Many tuberculosis patients with HIV have been treated.