Listening Quiz: Bàn về Cải thiện Hiệu quả Sử dụng Năng lượng – Advanced Level

1. What is Olivia mainly discussing with William?
2. According to Olivia, how often should the kitchen equipment be maintained?
3. What does Olivia say about LED lights?
4. What can be inferred about William’s attitude toward Olivia’s plan?
5. Why does Olivia want to make these changes?

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