【正文】
Think whether it is really necessary before you buy _________ __________. 4. 為了節(jié)約資源,我們要愛護(hù)我們的物品以便它們能 長時間使用。 1. I think everyone should care ________ protecting the environment and saving energy 2. Burning wood for fuel(燃料 ) is better ________ the environment than recycling it. 3. “Who can tell me which the best title _______ the passage is?” the teacher asked. 4. The eightyearold boy can look _______ himself well. 5. Recycle means “change things _______ something else” XK] 6. We should buy some products made _______ recycled materials. 7. Don’t fet to turn ______