根据汉语或首字母提示，写出下列单词
1．Many people served as volunteers (志愿者) in the Beijing Olympic Games.
2．Nowadays (现今)，more and more people like chatting on the Internet.
3．The driver should take responsibility (责任) for the passengers' safety.
4．People have lived in this valley since ancient (古代的) times.
5．His encouragement has a magical (魔力般的) effect on children.
6．I decided to replace my old cars with a new one.
7．No one but ticketholders was admitted into the park.
8．More than 10，000 athletes took part in the Games.
9．We all know that Tokyo will host the 2020 Olympic Games.
10．He will compete with a skilled athlete in the coming game.
