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Best lesson ever.

These are practical and useful phrases for our business life. Thank you Mr. Callan

Lucia Hi Derek, great lesson and useful, there is everything I have searched. thank you very much. You do great job 👍

Thanks for more one great English class ! I follow you a few weeks.

HELLO DEREK GREAT AND HELPFUL LESSONS THANK YOU SO MUCH. TAKE CARE OF YOURSELF AND BE SAFE. 🙌 😊

Hi Mr Callan thank you another useful lesson. All your topic are helpful and easy to understand. It would be great if you can make a course on content writing or creation.

Another great lesson, thank you Derek.

Waqas here Hi Derek. Your content is worth appreciating. Its help me alot. I searched everywhere such type of content on google but couldn't find such precise content. Do you have any video on when we contact supplier for the first time over phone, how to start and how to end our negotiating with the supplier? That would be great if you can send your that video link in here. Thanks Love from Pakistan🇵🇰

really good thank you

thanks for your videos

Very good phrases! Thank you!

Your lessons are very useful love u sir

Really appreciated 🙂, I learnt something new and improved a little bit e. Thanks for your great contribution. Love for India

Awesome sir

Very helpful 👌

Great video.... Thanks Sir.

It's great to put a face to the name

Very Informative and very impressive.

Thank you very much

Hi, first of all thank you so much for your very helpful tutorials, I'm working in tourism field could you arrange specific tutorials about writing complaints and reply to complaints. Thank you once more.

informative videos

I just watched again …

Can you help me in order to speak very well english ?

How to get your vocabulary email ?? please let me know. Thanks.

Hi Sir, Are you British or American?