Uncle Wang is the barber’s at the moment, so you have to talk to him the phone.
A. in; in
B. at; on
C. on; at
D. at; at
网友回答
A. in; in
(答案→)B. at; on
C. on; at
D. at; at
解析：本题介词用法。at the barber’s在理发店和on the phone在电话里，为固定短语搭配。句意：王叔叔刚才在理发店的，所以你不得不打电话跟他说。