I have bought a nikon D7000?

The lenses that I have are 18-105mm, 55-200mm and the 70-300mm is there any other lens that i would need. I take sports shots, kids, scenery so just about anything. Do I need to add anything else

I suggest you start shooting. Only then will you know if you need anything more. Your lens range is covering from 18mm and 300mm and this is more than sufficient for a general shooter.

You might want to get a good flash if you shoot in low light conditions or at night.

If you can take any shot presented to you any time with those three lenses you already have then you don't need another lens. You already have a very wide range of focal length to work with from 18mm to 300mm although you can survive with just two. The 55-200mm range is within the other two lenses. You can sell it if you want and take the family out for dinner. The moment you find you can't take a specific shot despite with what you have, don't hesitate to come back and ask for what lens would do what you have in mind. We'll be here waiting.

You could almost dismiss the 55 to 200mm since its range is covered by the other two. Sell it and get a good flash. There's nothing else you need, unless possibly an exteme wide-angle (starting around 10mm) or an extreme tele zoom (finishing around 600mm or more) but both of those are very expensive.