单词拼写。

根据所给汉语提示用适当的单词完成句子。（每空只写一个单词）

1. Don't feel _______ (羞耻) that you have to try several times before you finally stop smoking.

2. These rules and regulations have been _______ (采用) by many major cities.

3. The _______ (实际) cost was much higher than we had expected.

4. Prices have risen _______ (平稳) during the past decade.

5. The government is considering a total _______ (禁令) on the sale of handguns.

6. The president finally handled the issue by _______ (加强) the relationships between the two countries.

7. The greenhouse effect gives the earth's surface the _______ (平均) temperature of 15℃.

8. Huge _______ (数量) of oil were spilling into the Gulf of Mexico last year.

9. Don't call me unless it's ______ (绝对) necessary.

10. Who can ________ (预测) what painting styles there will be in the future?