0
votes
1answer
56 views

“A person” versus “some person”

What is the difference between: There is a person in the room. There is some person in the room.
0
votes
1answer
76 views

'In the event of fire' or 'in the event of a fire'?

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.
1
vote
2answers
183 views

“Between a mother and daughter” vs. “between a mother and a daughter”

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 ...
2
votes
2answers
144 views

“He feared a U.S. invasion” vs. “He feared U.S. invasion”

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 ...
3
votes
3answers
1k views

Difference between “an” and “one”

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 ...
5
votes
2answers
3k views

Difference between “change is constant” and “change is a constant”

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, ...