I’ll start with E.
That’s my style too. 
There seem to be two E’s in here:
/ ___ ___ ___ ___ / ___ ___ ___ ___ ___ / ___ ___ ___ ___ / ___ ___ ___ ___ / ___ ___ ___ ___ ___ E ___ / ___ E ___ ___ .
I hope I’m not making any mistakes. I keep counting and recounting. Spelling and respelling.
(People don’t spell in Romania. When they say CASA they write CASA.)
So, T is the next most common letter in English. Let’s go with that.
Do you speak English as your second language, or are you an expat living in Romania?
My brother and I were fascinated by the West as young Romanian people. My brother is an American citizen now whereas I’m comfortable here.
Unfortunately there are not T’s in this sentence.
Strike one.
The sentence remains the same:
/ ___ ___ ___ ___ / ___ ___ ___ ___ ___ / ___ ___ ___ ___ / ___ ___ ___ ___ / ___ ___ ___ ___ ___ E ___ / ___ E ___ ___ .
Amazing language skills on your part! I could never do this in, say, German, which I took in high school and college.
OK, one more guess from me, then I’m away for a while.
A
Thank you. It is very kind of you to say that. 
ETA: You should see my daughter - she literally grew up on the Internet. To say that she was a bilingual would be an understatement. (Yes, father loves his daughter.)
Yes, there are A’s in the sentence:
/ ___ A ___ ___ / ___ ___ ___ ___ ___ / ___ ___ ___ ___ / ___ ___ ___ ___ / ___ ___ ___ ___ ___ E ___ / ___ E A ___ .
That’s a lot of blank space with no vowels, so I’m going with O.
Yes, there are O’s in this sentence:
/ ___ A ___ ___ / ___ O ___ ___ ___ / ___ O ___ ___ / ___ O ___ ___ / ___ O ___ ___ ___ E ___ / ___ E A ___ .
Here’s hoping the second-to-last word is a past-tense, and try for a D there.
No, sorry. There are no past tenses here.
But there are two D’s in this sentence:
/ ___ A ___ ___ / ___ O ___ ___ ___ / ___ O ___ D / ___ O ___ ___ / ___ O ___ ___ ___ E ___ / D E A ___ .
R, please.
And then an I, if you would.
Thank you for your guesses.
There is an R, indeed:
/ ___ A ___ ___ / ___ O ___ ___ ___ / ___ O ___ D / ___ O ___ ___ / ___ O ___ ___ ___ E ___ / D E A R .
Unfortunately, there are no I’s in this sentence.
Strike two.
Howsabout a C, then?
Well, C is a different story.
/ ___ A ___ ___ / ___ O ___ ___ ___ / ___ O ___ D / C O ___ ___ / C O ___ C ___ E ___ / D E A R .
I think that third word could use an L, but I’ll take it anywhere.
Good thinking.
/ L A ___ ___ / ___ O L ___ ___ / ___ O L D / C O ___ ___ / C O ___ C ___ E ___ / D E A R .
Is there a “G”, then?
Thank you for your guess.
Unfortunately, there are no G’s in this sentence.
Strike three.
The sentence stays the same:
/ L A ___ ___ / ___ O L ___ ___ / ___ O L D / C O ___ ___ / C O ___ C ___ E ___ / D E A R .
All right, how 'bout an “S”?