A little about me.

Is this note written correctly? (It is heartwarming to see you learnt your lesson well from previous correction).

I live in a house. (I don`t live in a flat) 1 . I`m am 2 a n medical representative. I work in a lot of in hospitals 3. I need to talk to many 4 doctors about my company's pharmaceutical productions and new medications.  speak with a lot of doctors and distribute drugs (medicaments?) my company. I like swimming, skiing and playing chess. I like to drink tea, coffee and sometimes beer.

Wow, first time I heard that a Ukrainian didn't include Vodka in their beverage list! :)  Writing simply is the best way to improve your English.  As you get better, you can start writing in more complicated stuctures.  Well done!

1.  You don't need to include in parenthesis.  There is nothing grammatically wrong with these two sentences.  However, a mature native speaker will not write in this way, except as a style in novels to create a certain atmosphere for a scene.  Usually in daily lives, we write something like this, "I live in a house, not in a flat."  Flat is UK English, "apartment" is US English.

2.  I treat all notes here as formal writing or essays.  So do not use contractions.  These contractions are only used for writing dialog.

3.  Again, we understand what you are saying but not how we usually express.  In my opinion, it is better to say, "I spend much time in hospitals because of my work", "My job entails me to spend much time in hospitals", or even "I have to be in hospitals much of the time due to the nature of my work".

4.  "A lot" is too colloquial in formal settings.  "Many" is a much shorter word to use (for things that are countable) and "much" for non countable things.