Refugees and migrants at a detention centre

The video tutorial consists of a brief introduction followed by a closing thank you note.

Why is it important to acknowledge others with phrases like 'OK' and 'Thank you'?

• It shows respect

• It is unnecessary

• It can be ignored

• It complicates communication

What are some alternative phrases to express gratitude?

• I appreciate it

• Thanks a lot

• Much obliged

• All of the above