I know little about the accident because not much about it up to now.A. has saidB. has be

问题补充：

I know little about the accident because not much about it up to now.

A. has said

B. has been said

C. had said

D. had been said

答案：

A. has said

(答案→)B. has been said

C. had said

D. had been said

解析：句意：对于这次事故，我知道的很少，因为到现在为止，没有听说太多。根据时间状语“up to now”，故用现在完成时，且“事故”和“说”之间是被动关系，故用被动语态，选B。