Re: how can i make my first ad,please tell me.
Actually, the decisions you need to make when you create your first campaign are too complicated to put in a short post. How to create an ad for instance--that depends on what kind of ad you're creating.
I would strongly suggest that you study up on the parts and pieces of a campaign and how they interact before you start spending money. You can find a lot of valuable information in the AdWords Learning Center.
If you have any specific questions, please feel free to post again!
Google AdWords Top Contributor