How to use 'of course'. It's not always polite.

source: Simple English Videos    2017年6月2日
‘Of course’ is such useful English phrase, but be careful. If you use it wrongly people might think you’re angry when you’re not, or they might think that you think they’re stupid. In this video you'll learn how to use it correctly.
Facebook Page:
Twitter: @vickivideos
Get regular updates on our videos: