6 . 根据句子意思，从方框中选用恰当的单词或短语填空。

some day, carry out, to separate, of great wealth, very successful, widely, carry on, dressed up as, courage

1. Thomas Bach, president of the International Olympic Committee, said that Beijing Winter Olympics were ________.
2. The nurse was very tired, but she managed to ________ the difficult task.
3. Online libraries are ________ used for learning in the information age.
4. Little John ________ a clown（小丑）and it made his parents laugh.
5. My cousin hopes he can be a pilot like his father ________.
6. More and more people think it necessary ________ the rubbish into different groups.
7. Chinese people have showed great confidence and ________ in the epidemic prevention（防疫）.
8. The man ________ decided to donate all his money to charities after his death.