I'm really in two minds about it

[Strawberry girl]

Test No. incompl/inter-40 "Do you mind?", question 8

I just can't decide whether to go on holiday this week or later in the year. I'm really in ......... minds about it.

(a) twice
(b) double
(c) two
(d) dual

Test No. incompl/inter-40 "Do you mind?", answer 8

I just can't decide whether to go on holiday this week or later in the year. I'm really in two minds about it.

Correct answer: (c) two

Your answer was: incorrect
I just can't decide whether to go on holiday this week or later in the year. I'm really in double minds about it.
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Why?Is it a set phrase?What does it mean?

[Alan]

This expressions describes uncertainty and indecison. Being in two minds whether to do something suggests you can't decide whether to do it or not.
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English as a Second Language
You can read my ESL story Have a Break!