题目内容：

根据首字母提示及句意，在句中空白处填入适当的单词。

1.Good n_____ is essential if patients are to make a quick recovery.

2.This is the o_____ painting, and the others are copies.

3.In some countries, witnesses in court have to s_____ on the Bible.

4.Those who i____ hunt rare and endangered wild animals are to be sentenced to prison.

5.Great efforts have been made in ecological c____ and environmental protection in recent years.

6.As long as we are united, there will be no difficulty that cannot be o____.

7.Only when applied on a global scale can the achievements of science and technology play a m____ role and better benefit humankind.

8.A____ by cheerful music, people began to dance on the large square.

9.Over the years, overseas Chinese have enthusiastically supported and p____ in China's economic construction in various ways.

10.The research shows the urban air quality this year remains unchanged, compared with the p____ year.