10. I should ________(确保) myself to reporting the facts.　　　 　　　　　　　　10____________

Keys: 1.polluted　　　 2.separately　　 3.sparing　　 4.profession　 5.figure

9. “ Heavy ” is the o__________ word of “ light ”.　　　　　　　　　 　　　　　　9____________

8. Textbooks were　 ________(分配) free of charge . 　　　　　　　　　　　　　　8____________

7. As everybody knows, Thursday is the f__________ day of a week.　　 　　　　　　7____________

6. You’d better speak h__________, not tell lies.　　　　　　　　　　　 　　　　　　6____________

5. There is a beautiful carved f__________ on the stone.　　　　　　　 　　　　　　5____________

4.He is a teacher by ________(职业) .　　　　 　　　　　　4____________

3. I know you are very busy. Would you mind s__________ me a few minutes?　　 　　3____________

2. After saying “ Good-bye ”, they all went off s__________.　　　　　 　　　　　　2____________

1. We should take some measures to prevent the river from being further p________.　 1____________