翻译，求质量，无聊的人别来！！！

Car sales to reduce air pollution in the city limits, it is very critical.
Successful advertising must take into consideration the different needs of consumers.
Since she had brain surgery, her quality of life improved a lot.
Students should spend most of my time on study rather than watch TV.
Luckily you help, we accomplished the task ahead of time.
You can make sure I can find a job as soon as you arrive there?
She bade the son not to tell anyone about this.
A light bulb hanging on the ceiling, sending out the cold yellow light.
Soon after the to France, Mr And Mrs Smith had got used to the new way of life.