Why the answer is of?

[Indeez]

English Grammar Tests, Elementary Level

ESL/EFL Test #24 "Shopping", question 5

Yes, we've almost run out ......... cheese, butter, milk.

(a) through
(b) of
(c) by
(d) with

English Grammar Tests, Elementary Level

ESL/EFL Test #24 "Shopping", answer 5

Yes, we've almost run out of cheese, butter, milk.

Correct answer: (b) of

Your answer was: incorrect
Yes, we've almost run out by cheese, butter, milk.
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why the answer is of?

[Daniela]

Hi,
"To run out of sth" is a set expression meaning "to have no more, to finish sth". For example, if you run out of petrol, it means that your tank is empty and you need to fill it up; if you run out of time, it means that you have no more time; if you run out of money, it means that you have no money, etc.
Success!
Daniela

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[Alan]

Hi Indeez,

The complete phrasal verb is run out of something and means no longer have something.

Alan
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English as a Second Language
You can read my ESL story Present Simple

[Satishchemeng]

Dear Teachers
Now please tell me , already my Petrol is over do I have to use I ran out of Petrol ( Since it already happened )
or I run out petrol .
Cheers

[Alan]

Hi,

It depends on the situation. You can say: I ran out of petrol last night on the way home. You can also say: This car is a problem because I always run out of petrol when the gauge indicates that there is still some left.

The first sentence refers to one occasion in the past and the second sentence refers to something that happens again and again.

Alan
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English as a Foreign Language
You can read my EFL story Progressive Forms