Trắc nghiệm tổng hợp Tiếng anh có đáp án 2023 (Phần 61)

What is the main topic of the passage? A. How to protect the environment

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What is the main topic of the passage?

How to protect the environment

How to use light bulbs

How to keep your house warm

How to save energy

Giải thích

4. Thông tin: But what can you do to save energy? There is plenty that you can do to help the process of energy conservation. You can save energy by following these simple rules …

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