. It is the first time that Chinese astronaut Wang Yueas one of the volunteers for the Mar

问题补充：

. It is the first time that Chinese astronaut Wang Yueas one of the volunteers for the Mars-500 test project .

A. has been selected

B. had been selected

C. has selected

D. selected

答案：

(答案→)A. has been selected

B. had been selected

C. has selected

D. selected

解析：考查句型：It is the first time that 后跟从句用现在完成时态，题中主语Chinese astronaut Wang Yue为单数，根据语境是被选为志愿者之一，所以用现在完成时的被动语态。故选A。