你今天为什么闷闷不乐/心情不好？

Why are you ___in ___a ___mood today?

争吵之后，她一整天都心情不佳。

After the argument, she was ___in ___a ___mood all day.

别试着跟他说话；他从早上起就一直在闹情绪。

Don't try to talk to him; he's been ___in ___a ___mood since morning.