1-5 DBABD       6-10 CDDBA      11-15 BCDAB  
1. environmental   2. latest   3. raised   4. stable
5. experts /environmentalists    6. enemies   7. pollution   
8. concern     9. importance   10. situations

【答案及解析】：                    A
1. B 故事发生在考试进行期间，故选B。
2.C由“She showed me that hers was out of ink and would not write.”可知她的笔坏了。
3.D 由“Later, after the test papers had been turned in, the teacher asked me to stay in the room…”可知考完试后，老师让他留下（stay behind）。
4.A 由“. For a long time, she talked about honesty and emphasized（强调）…”可知老师反复强调的就是cheat的反面诚实（honesty）。
5.C 由最一段“Later on…”可知 。
                                  B
6. B 由第一段，用排除法。
7. D 由第二段“They may keep telephone calls and meetings a secret and not want anybody to touch their things.”可知。
8.由最后一句可知。
9.C 纵观全文，可以看出讲的是青少年喝酒的问题。

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