What is the difference between: There is a person in the room. There is some person in the room.
In the event of fire,... In the event of a fire,... I see both variants ondifferent Web pages and I cannot understand which is correct. Could you please explain it to me.
What is the difference in meaning between these two sentences? The relationship between a mother and daughter. The relationship between a mother and a daughter. I know both are ...
It it accurate to say this? He feared a U.S. invasion. Or should I say, He feared U.S. invasion. I'm trying to figure out when to place "a" in front of the U.S. when U.S. comes with a noun ...
Forgive me if I miss something very obvious; English is not my native language. I am currently taking an online (sort of) Math class that aims to teach creating/writing unambiguous Mathematical ...
The boss asked me the other day whether it's more correct to say In our business, change is constant. or In our business, change is a constant. Both of these sound perfectly correct to me, ...