Upon hearing the news, he rushed to the hospital.
He relied upon his savings.
We rely upon public transport.
She relies upon her assistant.
I rely upon my notes when I study.
We rely upon volunteers for the event.
She relies upon her friends for support.
I rely upon my calendar to stay organized.
They rely upon the internet for information.
He relied upon a local guide during the trek.
They rely upon strong communication in remote teams.
