Mr. White as well as his friends a number of countries in the past few years.A. has trave

问题补充：

Mr. White as well as his friends a number of countries in the past few years.

A. has travelled

B. have travelled

C. had travelled

D. travelled

答案：

(答案→)A. has travelled

B. have travelled

C. had travelled

D. travelled

解析：考查主谓一致及时态。as well as连接两个主语，谓语动词与前一个主语保持一致，故用单数，根据时间状语in the past few years，故用现在完成时，故选A。