If you want to practice the dialogs, watch these videos.

Lesson 4-10    • EPS-TOPIK Dialogue Listening (Book 1,...  
Lesson 11-20    • EPS-TOPIK Dialogue Listening (Book 1,...  
Lesson 21-30    • EPS-TOPIK Dialogue Listening (Book 1,...  

You can listen and repeat the sentences included direct translation.
It makes you understand and remember the sentences easily.