3. Do you dare to walk in a __________(空无一人的) street at night?

2. My key is n__________ to be found. I don’t know where on earth I have left it.

1. The radio w_________ said the wind this afternoon would reach 170 miles per hour.

Dear friends,

May I have your attention, please? Now I’d like to make a speech here.

Nowadays, some of us students have formed some bad habits on campus. For example, some students leave the lights on in the daytime, or let water running after washing. Some leave over much food on the table after eating. Besides, waste paper and spoiled books can be seen everywhere. So it is high time that we had to deal with the problems.

As we all know, these bad habits will have a bad influence on our character and behavior. What’s worse, they can not only increase our cost at school and add financial burden to our parents, but also waste the limited resources.

But how to reduce the waste? In my opinion, we should start with ourselves to save everything. Here, I'd like to remind my friends to take the lead in reducing the waste.

Therefore, I’m sure, with everyone doing his bit, we will change the present situation.

That’s all. Thank you!

　　　　　　　　 6．own　 7． children　　 8．engineer　　 9．host　　 10．popular

　　　　　　　　 11---15 CDCAD　　 16---20 BACAC

　　　　　　 11---15 DBDAB　　　 16---20 DCDAD

　　　　　　 21---25 CBCAC　　　 26---30 CCCCB

16. solution　　　 17.unfortunately　 18.memorial　　 19.wealthy　　　 20.civilization

11.enormous　　dition　　　 13.overthrow　　 14.documents　　 15.influence

6.united　　　　fusion　　　 8.similarities　　 9.formation　　cerned