grammar

samersamer1974 it is supposed to put " at" instead , for " at " is used for the names of street

It is not so, to my knowledge. I always say 'on X Street'. Could you give an example?

Hello
I have read this in advanced in grammar use : we use "at" instead of "in" when we use a street name to refer to an institution in that street:
- There was an important meeting of ministers at Downing Street today .
but notice that we say "On Wall Street"
thank you

There was an important meeting of ministers at the prime minister's residence on Downing Street today .

"Downing Street" is not the street, it is the building where the PM has his office and residence.

Hello sorry , but the book refer that we use "at" for street name and we use "on" for the roads name , could you explain why do we use "on" to the street name or I probably understand it wrongly
thank you

AlpheccaStars"Downing Street" is not the street

Downing Street is the street. The Prime Minister's official residence is No 10 Downing Street.

fivejedjonDowning Street is the street. The Prime Minister's official residence is No 10 Downing Street.

I meant "Downing Street" in the posted sentence. The longer version has "on Downing Street."

They met at No 10 Downing Street (which is on Downing Street).

Hello I am sorry again , but what about for Wall street , is it a street or what , and second : so we use on for all names of roads and streets and highways , right
thank you