1. They used stone and mud

2. The skylights give us light in the day so we don't use electric lights

3. Because they don't want to damage the environment

4. We can see lots of local wildlife 

5. We can see the amazing waterfalls

III. Read the passage carefully, and then answer the questions:

1. They used stone and mud.

2. The skylights give us light in the day so we don't use electric lights.

3. Because they don't want to damage the environment.

4. We can see lots of local wildlife.

5. We can see the amazing waterfalls.

@hahoang207

~Good luck!!!~

Xin hay nhất + cảm ơn và 5* nhó!!! >3