The train always ___ (leave) the station at 6:45 a.m. sharp.
The train always leaves the station at 6:45 a.m. sharp.
My uncle ___ (not work) in an office; he ___ (teach) at a university.
My uncle doesn't work in an office; he teaches at a university.
Correct the question.: Where your teacher comes from?
Where does your teacher come from?