---Where were you at 10 o’clock yesterday morning?I was in .A. the barberB. the barber

问题补充：

---Where were you at 10 o’clock yesterday morning?

--- I was in .

A. the barber

B. the barbers

C. the barber’s

D. barbers

答案：

A. the barber

B. the barbers

(答案→)C. the barber’s

D. barbers

解析：本题考查短语固定用法。in the sb’s，表示在某人那里，故选C。句意：——昨天早上10点钟你在哪里？——我在理发店。