Expression: behaves in a crazy manner

[Jamal72]

English Idioms and Expressions, Advanced Level

ESL/EFL Test #48 "Food Idioms", question 2

Everyone knows that our math teacher is out to lunch.

(a) behaves in a crazy manner
(b) went to have lunch early
(c) is not here because he's having lunch

English Idioms and Expressions, Advanced Level

ESL/EFL Test #48 "Food Idioms", answer 2

Everyone knows that our math teacher behaves in a crazy manner.

Correct answer: (a) behaves in a crazy manner

Your answer was: incorrect
Everyone knows that our math teacher is not here because he's having lunch.
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it is really a new expression to me, thanks a lot

[Linda]

Thanks for letting us know.
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[Georgian]

I thinck that the correct answer is "c".Do me a favour and explane me why is the correct answer "a"

[Bhelmp]

I go with letter 'c', but since you are far better than me...kindly explain it to me...why the correct answer is 'a'?

[Torsten]

"To be out to lunch" is an idiom. It means 'to behave in a crazy manner'.

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