Microblog is a platform ________ people can express their thoughts, show their daily life and communicate with each other by sending post.
________ by his look, he doesn't think much of our plan.
After graduation, she wanted to ________ her own business.
Tom took the police to the spot ________ the accident happened.
National Day ________ people singing and dancing happily in the street.
As there was no one she could________, she felt very helpless.