The problem won’t be settled until we ________ a chance to discuss it thoroughly.

问题描述:

The problem won’t be settled until we ________ a chance to discuss it thoroughly.
A.have had 对这个答案不理解,时态有点乱,

have had就是现在完成时,had这里是实义动词have的过去分词,have a chance to do sth.
这个问题直到我们有个机会彻头彻尾地讨论过一番才可能被解决.
这里用完成时,强调讨论完这个状态,讨论过了问题才能被解决.