I didn't answer the telephone because I _____ a shower at that moment. [ ]

A. have taken

B. will take

C. was taking

D. am taking  

(1)有关人员受到处分 (2)小学生接种疫苗(3)有关部门进行调查 (4)某防疫站购进过期药品(5)小学生出现不良反应

A．2-4-5-3-1

B．4-2-5-3-1

C．4-2-5-1-3

D．5-2-4-3-1