---I came all the way to inform you of the time and place of the meeting. ---You could have _____ yourself the trouble.
_____ to Beijing, I would visit the Forbidden City where the emperors once lived.
This is not my car. It _________ one of my friends.
Sang Lan was so seriously injured that she was ______ to a top hospital in New York.
We were talking and laughing, when our teacher came in and asked us what all the ______ was about.
The elevator _________ and we were trapped inside for half an hour.