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).