单选题 No such weapons were used and none been found.
A. none have been B. none has
C. no other has been D. no others been

【正确答案】 A

【答案解析】[解析] 结构应用。
此句由and连接两个并列成分，所填选项应与前面were used一样，是一个完整的结构；因此选项B．none has和D．no others been均是错误表达，C．no other has been 与 and前的半句时态不符，只有A．none have been的结构正确。