【简答题】IV. Listen and fill in the following blanks. 1. Sharks are one of the oldest animals on Earth. They existed even before and haven't changed their way of life since years ago. Now there are different k...
【简答题】IV. Listen and fill in the following blanks. In southeast Asia, at least(1) people have contracted the bird flu virus in the past two years, resulting in at least (2) deaths in (3) , (4) , (5) and (6)...