21． More than one high officialby the police since the mayor war shot dead.A. has been que

问题补充：

21． More than one high officialby the police since the mayor war shot dead.

A. has been questioned

B. have been questioned

C. was questioned

D. were questioned

答案：

(答案→)A. has been questioned

B. have been questioned

C. was questioned

D. were questioned

解析：可联系答案网客服索取此答案。