根据所给汉语和首字母提示完成单词，使句子完整。

1. Although the wind was blowing strongly, the plane landed ___________ (安全).

2. The car was out of c___________ and hit a tree and stopped at last.

3. Please tell me the e___________ about your trip to Beijing.

4. You'd better __________ (重新启动) the computer to listen to the music.

5. Do you know who played the main c__________ in that film?

6. There are always some football matches on C___________ 5 of CCTV.

7. Young people like to chat with their friends ___________ (在网上).