Listening Quiz: Liên Hệ Khẩn Cấp Và Quy Trình Cứu Hộ – Medium Level

1. What is the conversation mainly about?
2. According to William, what should a person do if they get lost?
3. What should a person do if they cannot call for help?
4. Why does Sarah mention that the phone should have enough battery?
5. How often will Sarah and William check in?

Luyện tập thêm về bài học này: