\textbf{44 -- Identify ``ma'' as \textbf{nominative}:}
\begin{enumerate}
\item The workers go on Thursdays to the city center to prepare what they need!
\item The female students of the class study with full activity and diligence on the days of the week!
\item Indeed, understanding Arab culture helps in understanding the Arabic language for humans!
\item The teacher distributed to his students what he corrected from the exam papers!
\end{enumerate}