男，30岁，被枪弹击伤上臂中段，体检：垂腕，各手指不能伸直，拇指、示指、中指背侧麻木，肘关节屈伸活动正常。X线示：肱骨中段见1个弹头形状的金属异物，骨质未见断裂。其最可能的神经损伤是（）.

A.桡神经

B.正中神经

C.尺神经

D.臂丛神经

E.以上皆不正确

—Could you please tell me ______?

— It's next to the post office.     [ ]

A. where is the supermarket            

B. where the supermarket is

C. where was the supermarket          

D. where the supermarket was