. It is the first time that Chinese astronaut Wang Yue as one of the volunteers for the Mars-500 test project .
A. has been selected
B. had been selected
C. has selected
D. selected
网友回答
(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。