说下思路

题目

说下思路
He has tried twice,and now he is asked to have ( ) third try.
郁闷，居然忘了选项了，补上
A.one B.a C.another D.the
一楼的答案正确，可是能不能具体点，说下A和D的区别。前面已经提到了twice,为什么不能用the third?

答案

应该是 词组 have a try
这里,third 修饰 try,说明第三次试
本题,与the third 无关,the third,第三次,强调次序