How can I do this drawing below?

[elindo586]

I want to do the two half circles... how can I do them?

I can do the rest without problem..

[pixxxelschubser]

You can use the Arc Tool for example - or the Ellipse Tool (and cut the part which is not needed with an rectangle) or …

[pixxxelschubser]

 

use Pathfinder Panel and Direct Selection Tool to select and remove unnecessary parts

 

create a duplicate of the arc with Mirror Tool and drag it a little bit downward

[elindo586]

Why do I keep getting the extra line above when using the pathfinder? 

[pixxxelschubser · Accepted solution]

Which pathfinder operation did you use?

But anyway, click with Direct Selection Tool on the line and delete.