他有点闷闷不乐。

He ___is a bit ___down ___in ___the ___dumps.

当我闷闷不乐时，她却很开心。

When I ___was ___down ___in ___the ___dumps, she felt happy.

争吵后，她闷闷不乐了好几天。

After the argument, she ___was ___down ___in ___the ___dumps for days.