Listening Quiz: Đào Tạo Về Hệ Thống Quản Lý Hải Quan Mới – Easy Level

1. What is the conversation mainly about?
2. What does David say is the first step for entering a declaration?
3. What will the system do if something is wrong?
4. What can be inferred about Linda after the conversation?
5. What will probably happen next according to David?

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