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4. Imagine your school wants to become more eco–friendly. Read these four ideas. Choose two and explain why they are the best.

I think the best ideas are putting solar panels on the roof and using more digital textbooks.

First, solar panels are very useful because they produce clean energy and reduce pollution. However, the price can be quite high at the beginning. Even so, in the long term, the school can save money on electricity.

Second, using digital textbooks is also a great idea. It helps save paper, which means fewer trees are cut down. This has a positive influence on the environment. Students can also carry fewer heavy books.

In my opinion, these two ideas are the best because they help both the environment and the school in the future.