usepackage{multicol}
begin{document}
maketitle

begin{multicols}{2}
section*{Abstract}

lipsum[1-2]

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  % end of page
a

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tableofcontents
end{multicols}

documentclass{article}
usepackage[a4paper,margin=2cm]{geometry}
usepackage{lipsum,multicol}
usepackage[colorlinks]{hyperref}
title{Introduction to LaTeX}
author{xport}
begin{document}

begin{multicols}{2}
maketitle
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
section*{Abstract}
lipsum[1-2]
vfill
columnbreak
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
tableofcontents
%vfill
%columnbreak
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
section{Counter}
lipsum[1]
section{Box}
lipsum[1]
subsection{Parbox}
lipsum[1]
subsection{Rule}
lipsum[1]
end{multicols}
end{document}

vfilleject