English idiom: blow hot and cold

[Sangeetha]

Test No. incompl/inter-18 "Hot and Cold", question 2

You can never tell exactly what she is thinking because she very often ......... hot and cold over some topics.

(a) blows
(b) swings
(c) flies
(d) changes

Test No. incompl/inter-18 "Hot and Cold", answer 2

You can never tell exactly what she is thinking because she very often blows hot and cold over some topics.

Correct answer: (a) blows

Your answer was: correct
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why not use 'change hot and cold' instead of 'blow hot and cold' which inturn implies changing one's mood????

regards
Sangeetha

[Alan]

Hi Sangeetha,

The accepted idiom is blow hot and cold.

Alan
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