Neither Jam nor his parents places of interest here since they came to China.A. will visi

问题补充：

Neither Jam nor his parents places of interest here since they came to China.

A. will visit

B. has visited

C. have visited

D. visited

答案：

A. will visit

B. has visited

(答案→)C. have visited

D. visited

解析：句意：自从他们来到中国以来，无论是詹姆还是他的父母都没有参观这儿的景点。结合语境可知本句描述的是现在已经完成的动作，故用现在完成时态。由neither nor连接的两个主语，谓语动词与后一个主语保持一致，parents是复数形式，故谓语动词用复数，选C。