You will fall behind others you work hard.

Thegovernment plans to bring in new laws _____ parents to take more responsibilityfor the education of their children

I think I was at school, ____I was staying with a friend during the vacation when I heard the news.

________for her，Chen Zhong，the last champion，had no chanceto take part in the finals.

we are laid off, all of us will have to be retrained and improve ourselves