Complete the following text with suitable verbs in the box with their right forms. $\begin{array}{|l|l|l|l|l|} \hline \textbf{reside} & \textbf{see} & \textbf{know} & \textbf{remain} & \textbf{be} \\ \hline \end{array}$ Tigers are (a) — as ferocious animals. But they hardly kill any animal when they (b) — hungry. Usually, the tigers (c) — in the deep forest. They are hardly (d) — in the open unless there is a strong necessity. They often (e) — hidden under the deep green in search of their prey.