Complete the following text with suitable verbs in the box with their right forms. $\begin{array}{|l|l|l|l|l|} \hline \textbf{study} & \textbf{help} & \textbf{see} & \textbf{call} & \textbf{take} \\ \hline \end{array}$ Students are (a) — the future leaders of the country. Their main duty is to (b) — regularly. They should (c) — part in various activities to prepare themselves for the future. They can also (d) — involved in different social activities. They are (e) — helping the affected people during the time of natural disasters. However, they should never ignore their main duty.