She's used to running in the park after 6 p.m.
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Correct
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Incorrect
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Dummy Choice 1
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Dummy Choice 2
A
Correct answer
Explanation
The sentence 'She's used to running in the park after 6 p.m.' is grammatically correct. It uses the proper construction 'be used to + -ing' to express a habit or accustomed state. The gerund 'running' is correct after 'used to', and the time expression 'after 6 p.m.' is properly placed.