1)Sara left when Josť arrived.
2)Sara had left when Josť arrived.
They don't have the same meaning. That is:
1)It indecates thet sara left quite at the same time when Josť arrived.
2)It tells that Sara was the first to leave and after that Josť arrived.
Is that right!!!
Thanks a lot.
Thanks a lot Sahab. Finally I got one right!!