单项选择题
Question 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 question.Now listen to the news.
What was the significance of the discovery（）
A．The finding were published in Nature. B．More research efforts were encouraged. C．Most research questions were answered. D．It support an existing assumption.
单项选择题 What is the main idea of the news item?（）
单项选择题 What did the researchers discover in northern Kenya?（）
单项选择题 What is the main purpose of Angelina's visit to Iraq?（）
