根据句意及首字母(汉语)提示,补全单词。 1. We should use these bottles for r__ __. 2. All these houses were b___ _ with some used things. 3. P___ _ the door first when you come into my office. Don't push it. 4. Our teaching building has a special r__ __. It looks very, beautiful. 5. My brother has a___ _ (模型)of Shen Zhou V space ship.