Listening Quiz: Tư Vấn về Khoản Dự Phòng cho Rủi Ro Nền Đất Cao – Easy Level

1. What is the main topic of the conversation?
2. How much contingency allowance does Sarah say is usually added?
3. What does Sarah say the allowance should cover?
4. Why does Sarah suggest reviewing the ground data again?
5. What will John do next?

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