根据句意和汉语提示，在空白处填入适当的单词。

1．Ban Ki-moon was chosen as the eighth leader of the U．N．in             （十月），2006．

2．Today Linda's parents are out，she has to stay at home                （独自）．

3．Maggie is fond of              （下载）pop songs from the Internet．

4．The audience             （拍手，鼓掌）their hands as the performers stepped on the stage．

5．For some            （未知的）reason，Tony lost his job．