Other exercise said 'sin' instead of 'seo'
And, I guess, the other exercise said that instead of this in English. sin means that (something farther away), seo means this (something closer to you). ;-)
Aaand I'd like to thank you twice because I had never caught the difference between this and that in English either.
Can't you say '' Is toil leam seo''?
You can, that’s perfectly valid sentence. Meaning I like this.
But this exercise asks you to translate I do not like this.
What is wrong with ' Cha toil leam an seo'
an seo does not mean this, it means here