Q. Mary is not used . . . . . . . . staying in a big city.
✅ Correct Answer: (A)
to
Explanation: 'Used to' refers to something familiar or routine, as in "I'm used to getting up early for work". Hence it makes the sentence meaningful.
Explanation by: Team MCQ Buddy
'Used to' refers to something familiar or routine, as in "I'm used to getting up early for work". Hence it makes the sentence meaningful.