She's faking sleep. That's why she's not snoring.
- Ona udaje, że śpi. Dlatego nie chrapie.
That's why I was absent from school yesterday.
- Dlatego nie było mnie wczoraj w szkole.
This is why I need help.
- Dlatego potrzebuję pomocy.
This is why Tom is in trouble.
- To dlatego Tom ma kłopoty.
That is why he got angry.
- Dlatego się zezłościł.
That is why I am angry with him.
- Dlatego jestem zły na niego.