Althoughi failed four times, my father encouraged me to have _____try.

问题描述:

Althoughi failed four times, my father encouraged me to have _____try.
为什么填a fifth 不填the fifth呢?
拜托哪位高手帮忙解释一下谢谢了.

这是关于冠词的用法.详细的LZ可以去搜索,很多的.
这里因为是第一次出现所以用a,如果之前出现过,后面用the,以为引用前面的.