Usage of the word "Search" as idiom

[Kiott]

English Language Tests, Intermediate level

ESL/EFL Test #707 "English Slang Idioms (449)", question 1

"You don't have any idea where my miter saw is? I can't find it anywhere," Chris said to Linda. She replied, "......... me. I have no idea. Did you check the garage really thoroughly?"

(a) Watch
(b) Search
(c) Examine
(d) Critique

English Language Tests, Intermediate level

ESL/EFL Test #707 "English Slang Idioms (449)", answer 1

"You don't have any idea where my miter saw is? I can't find it anywhere," Chris said to Linda. She replied, "Search me. I have no idea. Did you check the garage really thoroughly?"

Correct answer: (b) Search
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what is idiom?

Kiott

[Mister Micawber]

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An idiom is a group of words that together have a different or extended meaning from the separate meanings of the individual words in the group. In this case, 'search me' means more than just 'search' (= examine, look for) + 'me'; 'search me' means 'I have no idea'.
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Native English teacher at Mister Micawber's