【正文】
lease turn off the cock after you wash your hands 2. Gold, silver and iron are all m_______. 3. It’s more and more important for everyone to save e_______ now 4. Air p_______ is quite harmful to our health. 5. The students from a green school are helping collect waste paper and bottles for r________. II. 用所給單詞的適當(dāng)形式填空 。 _______ _______ people from the city took part in the activity of weling the Olympic flame. 3. 邁克 喜歡奶茶和可樂之類