胆绞痛的部位特点是 （）

A.右下腹，放射至右腰部与右下肢

B.脐部、下腹部绞痛

C.右上腹，放射至右背与右肩胛

D.腰部并向下放射

E.左上腹，放射至左肩胛

— Long time no see!

— I've just returned I             to Zhengzhou for a meeting last month. [ ]

A. am sent

B. was sent

C. am sending

D. was sending