'my blood turned to ice' vs 'my blood turned to water'

[Omary]

English Language Tests, Intermediate level

ESL/EFL Test #435 "English Slang Idioms (174)", question 1

"I heard someone outside my window last night and my blood turned to .......... I was so scared! It turned out that my husband realized, in the middle of the night, that he had forgot to lock the shed and it was him that I was hearing," Jamie told Dorothy.

(a) mud
(b) water
(c) ice
(d) plastic

English Language Tests, Intermediate level

ESL/EFL Test #435 "English Slang Idioms (174)", answer 1

"I heard someone outside my window last night and my blood turned to ice. I was so scared! It turned out that my husband realized, in the middle of the night, that he had forgot to lock the shed and it was him that I was hearing," Jamie told Dorothy.

Correct answer: (c) ice
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My blood turned to water when i saw that strange object. This means i became.....?

Omary

[Linda]

Hi Omary,
The idiom is "My blood turned to ice."
There is no idiom that reads "my blood turns to water." Water is an option that was given in the question but the correct answer is "ice."
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