It’s time that he has failed in the experiment.However he has made up his mind to try t

问题补充：

It’s time that he has failed in the experiment.However, he has made up his mind to try time next week.

A. the first…a second

B. a first.. the second

C. for the first.. second

D. the first..second

答案：

(答案→)A. the first…a second

B. a first.. the second

C. for the first.. second

D. the first..second

解析：the first time意思是第一次，但a second time表示在原来的基础是再来一次。