There's a way.

My friends and I spent 2 hours in the morning practicing speaking English. In this English workshop, we rarely use Japanese. I'm lucky to have such a nice opportunity to improve my English skills. After having a wonderful time, I headed for a library by bicycle; however, it turned out that the place was closed. Just my luck! I had intended to borrow a book which I had been very interested in... Although I was disappointed, from another point of view, which means I managed to spend extra hour for my exercise.


★ネイティブの添削★
it means I managed to spend an extra hour exercising.