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21. Grandma is now at _____.
A. the doctor’s B. the doctors
C. the doctor D. a doctor’s
22. - Where is the post office?
- It\'s_______ the hospital.
A. in the front of B. in the front
C. in front D. in front of
21. Grandma is now at _____.
A. the doctor’s B. the doctors
C. the doctor D. a doctor’s
22. - Where is the post office?
- It\'s_______ the hospital.
A. in the front of B. in the front
C. in front D. in front of

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