That's all controlled in the import dialog in the right-hand panel. Choose to import into one folder. Highlight the folder in the folder list where you want the files imported. If you want these files in their own subfolder you can additionally choose into subfolder, and name the subfolder that will be placed under the main folder you have highlighted.
Problem solved. It appears that a LR update changed the setting to a
default. In on of the earlier updates, a lot of things had to be reset to
what I had them before the update. This was just one that I didn't know