kk I didn't fully correct your version. But I got a lot of the errors. Have a look at the edited version below and see what you think.
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This is a cleft sentence. I think i don't really know the main ponit of cleft sentence so as to produce the awkward sentence.
It was after attending the course on English that I just known two words, “enjoy” and “information
For example, I didn’t grasp how to read article and to analyze the grammar. In other words, I hardly knew what English was. To pass it, I tried to memorize fifty vocabularies per day in the articles I read. Unfortunately, I did