单选题This is the second t

问题补充：

单选题ThisisthesecondtimeNieHaisheng________tobetheastronautwhotooktheglorioustask.A.has been chosenB.had been chosenC.was chosenD.chose

答案：

A解析This/ It is the first/second ,etc. time 后面的从句应该接现在完成时。