Lesson twenty six.
In this lesson we look at the uses of the words on and off.
English class with Duncan in England.
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All the videos by Mister Duncan.
Channel of Mr Duncan in YouTube
Special Thanks
Thank you very much, Mister Duncan, for this special opportunity of including here your excellent video classes!
Your teachings enrich so much the contents of this educative site!
Your free course is great! All the best for you!