Idiom: lose your head

[ilomu]

Test No. incompl/advan-34 "Teaching your Wife to Drive", question 6

The secret of being a good driving teacher is never on any occasion to lose your temper or your ..........

(a) brain
(b) thought
(c) idea
(d) head

Test No. incompl/advan-34 "Teaching your Wife to Drive", answer 6

The secret of being a good driving teacher is never on any occasion to lose your temper or your head.

Correct answer: (d) head
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Can I use brain here ?

Thanks!!

[Alan]

Hi ilomu,

No, lose your brain doesn't work here I'm afraid. Lose your head means panic/not be able to think clearly.

You might also note that use your brain means think clearly.

Alan
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English as a Second Language
You can read my ESL story A day in the life of a driving instructor