Which sentence correctly uses an apostrophe in a contraction?
Explanation: 'It's' is the contraction of 'it is.' The apostrophe marks the omitted letter.
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Explanation: 'It's' is the contraction of 'it is.' The apostrophe marks the omitted letter.
Explanation: A labeled probe binds a matching nucleic-acid sequence. Detection of the label reveals the target.
Explanation: The relationship is function or association: Key relates to Lock, and Password relates to Account.
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