Watch a video clip and answer the questions about it. Video 5.wmv 1. What does the speaker say of people who live in glass houses? He says that they are probably thinking 1 . 2. What are the two advantages of using daylight to brighten up our homes? It is 2 . 3. Why does the speaker suggest adding mirrors inside a house? Because mirrors can reflect sunlight to 3 of the room. 4. What are solar tubes? They are a style of skylight that brings in 4 . 5. What other advantages do people have besides the light once they have solar tubes installed? Besides the light, they can also 5 .