The document discusses the idiom "to leave no stone unturned" which means to try one's best efforts. It provides the idiom's definition and 4 examples of its use in sentences related to trying hard to get elected, keeping a state united, finding criminals, and investigating a scandal. It encourages visiting the speaker's YouTube channel to learn more about functional grammar through videos.

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“To leave no stone unturned”
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Nageswar Rao. A
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2. To leave no stone unturned means to try one’s level best
1. He left no stone unturned to get himself elected.
2. The Seemandhra JAC left no stone unturned to keep
Andhra Pradesh united.
3. The police left no stone unturned to trace the chain
snatchers.
4. Our director didn’t leave any stone unturned to get clues in
the question papers’ leakage scandal.

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