When will the new driving laws come into________?

The young woman rushed to the hospital ________ she heard the terrible news.

The law that farmers don’t need to turn over agricultural tax to the state has come into _______. 

. Whether you can get the job or not will largely depend on how you take ____ of the opportunity.

Drive straight ahead, and then you will see a   to the Hefei - Nanjing Expressway.