Have you ever had a conflict or a problem with a boss or colleague? How was it resolved?
Yes, I have had conflicts in the past. Never major ones, but there have been disagreements that needed to be resolved. I’ve found that when conflict occurs, it helps to fully understand the other person’s perspective, so I take time to listen to their point of view, and then I seek to work out a collaborative solution.
have had conflicts，here have been disagreement这里为何要用完成时，而不需要过去时态？
由于说话人谈论的都是不确切的过去时间发生的事件或存在的状况。说话人的脑子里并没想到一个具体的过去。所以要用目前完成时。