Listening Quiz: Giá Trị Của Nghiên Cứu Về Nước Sạch – Medium Level

1. What is the main topic of the conversation?
2. According to Paul, what benefit can the research provide?
3. Who will use this research, according to Paul?
4. What does Anna think about the research after hearing Paul’s explanation?
5. Why does Paul mention that the summary is simple and clear?

Luyện tập thêm về bài học này: