When translating, pay close attention to tense, prepositions, and subject-verb agreement. For instance, in sentence (ii), the correct English idiom is "by my watch," not "in my watch."
The English translations of the given sentences are:
\begin{enumerate}
\item[i)] They teach in a school.
\item[ii)] It is one o'clock by my watch.
\item[iii)] I have a beautiful pen.
\item[iv)] People respect Mahatma Gandhi.
\item[v)] The land of Bihar is fertile.
\item[vi)] You should respect teachers.
\item[vii)] She helps me in my studies.
\item[viii)] Will you go to Sunita's place tomorrow?
\end{enumerate}