Help with Illustrator

[JLD1523]

I am trying to draw something on Illustrator but when I try to create a circle or line segment it disappears after I draw it.  When I hover my mouse over it it shows up but how do I get it to stay visible after I draw it?

 

[JLD1523]

I am trying to draw something on Illustrator but when I try to create a circle or line segment it disappears after I draw it.  When I hover my mouse over it it shows up but how do I get it to stay visible after I draw it?