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
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