1.
AN UNUSUAL HOUSE
An eco-friendly building made of old plastic bottles has recently appeared in Atlanta, USA. Some students heard about a house like that in Algeria and they wanted _____ the idea. When they were building the house, 12.2. _____ people stopped to watch. Most of them didn’t believe it would be a comfortable place to live in. When the building 12.3. _____, they returned to see the final result. The walls of the house are made of plastic bottles, sand, cement, earth and dry grass. After a month spent in the house, the students are sure 12.4. _____ the building gives good protection from the heat and it won’t fall apart in heavy rain, either.
