Englishfor English speakers
assume
Verb
—
If you assume something, you think or believe something without having enough information to know that it's true.
Oh, hello. I assume you're the new student, are you?
If I saw a man dressed all in black, holding a gun, and walking toward me, I would assume that the man is really a dangerous guy and I would run away from him.
I saw your car in the garage, so I assumed you were at home.
an
Determinative
—
An (or a) is used when the following word could be any of a certain type.
I just ate an apple.
It is indeed an honor to have met you today.
office
Noun
—
An office is a room or building where people sit at desks and work.
Her office is in the third door on the left side of the hall.
We're meeting at the office after work.
—
A position held by public election is an office.
They both decided to run for office.
He holds the office of senator.