Quote Originally Posted by Muscovite
Yes, You are right regarding of my signature. I had (cut) shortened it. (how is this right -cut or shorten?)

But I do not understand your remark about prepositions at/in. Could you please explane me something?
In first case, you told that this is correct to write at English (I am a beginner at English)
Now you had corrected on in. "...that reflected my level of knowledge in the English language.
Why? Where is a difference?
You’d better avoid using the Past Perfect for the time being. Make sure you’ve learned when to use it first. It’s not that necessary for a beginner anyway. I think even the native English speakers don’t use it too often; go with the Past Indefinite instead.