Tom was badly injured in the accident last week. A new manager to take his place since the

问题补充：

Tom was badly injured in the accident last week. A new manager to take his place since then.

A. has been arranging

B. has arranged

C. was arranged

D. has been arranged

答案：

A. has been arranging

B. has arranged

C. was arranged

(答案→)D. has been arranged

解析：句意：上个星期汤姆在事故中受伤严重，自从那时一个新的经理已经被安排代替他的位置。和since then连用，用现在完成时，而且manager和arrange这里是被动含义，所以选D。