which or that?

How to understand the difference between which and that? It is the only problem of mine and I wold like not to do mistakes…

Hi Anny,

You might want to read and listen to the relative pronouns lesson.

Let me know what you think.
Regards,
Torsten[YSaerTTEW443543]

TOEFL listening lectures: Why does the professor mention the large jars?[YSaerTTEW443543]