题目内容

根据首字母提示填单词
1. Probably your boy threw it away, thinking it was w    _     paper.
2. This had a great e     __  on the future of both mother and son.
3. The police formed a h       _  wall around the building.
4. The new law will reduce p           of the air.
5. There was less o         at t.he top of mountain.
6. Most of c          was carried out of Shanxi Province in China.
7. Some plants is probably p    _     ,but they can be made into meclicine.
8. N    _     children are much healthier.
1. waste   2. effect   3.human   4. pollution   5. oxygen
6. coal   7. poisonous   8. Nowadays
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