根据句子意思和首字母提示写出适当的词，注意词形。（共10题，每小题1分，共10分）
1. UNESCO stands for the United Nations Educational, Scientific and Cultural O_________.
2. After meeting her for the first time, I was deeply i_________ by her rich knowledge.
3. Father used to smoke a lot in the past. I successfully p___________ him to give up smoking two years ago, so he doesn't smoke nowadays.
