Following is a way to put a circle shape in MS Word (Japanese version)
If you use "Auto-shape" , you can put circles in MS Word (Japanese version).
1. Drawing a circle;
Go the Menu Bar located in the top, choose 挿入, insert (I) ----->図, picture (P) ------> オートシェイプ,autoshape (A).
On the Autoshape window panel,
click 基本図形, basic shapes,and then choose the circle (oval shape) picture .
2. Changing the format of the circle shape so that texts behind the circle shape (made in Auto-shape) become visible.
After you draw a circle, click the the left hand side of button on your Mouse to select the circle you have just drawn.
Go Menu bar on the MSWords, and choose 書式,format (O)----->
オートシェイプ, autoshape (O)------> on the window panel of 色と線, colours and lines of オートシェイプAutoshape, change 0% in 透過性 (T)transparency to "100%"
In MS Words there are other ways to draw an circle by using Autoshape as well.
http://www.accd.edu/spc/it/ttc/word/graphics.htm