You can insert an arbitrary amount of space into a line with the
\hspace{length} command. Here the length must include a unit,
such as 1.5in or 2.3cm.
If you want a spacing in a line that will push the surrounding words
to the left and right margins, use the \hfill command. If
instead of spacing, you want either dots or a line, use
\dotfill or \hrulefill, respectively.
Practice:
Try all of these commands out now.