"A boy hears a woman."
Translation:Chłopiec słyszy kobietę.
I was waiting for someone to reference that since in so many of these lessons, the answer is something like "A boy sees an animal"
hm... in the example it was "On lubi " here it is "Chłopiec słyszy ". Is "lubic" some special word?
What do you mean? "lubić" is a verb (to like) and with the pronoun "on" it becomes "on lubi" "słyszeć" is a verb (to hear) and with the pronoun "on" it becomes "on słyszy"
I mean, that from one of prev. lesson one might come to conclusion that it should be "Chłopiec słyszi ". Is there some rule using which I could know what conjugation use? Or is it a topic from next lessons?
Unfortunately the present tense is very irregular, you cannot in general guess the conjugations from the infinitive alone. In this case, though, there is one rule you can remember with which you would have guessed correctly: the letter "i" can never occur after "sz", it has to be "y" instead.
Young boy vs an older boy. Very subjective, no clear border in age. I wouldn't give "chłopiec" more than 12-13, personally.
"chłopak" can also mean "boyfriend" - if it's "someone's chłopak", of course.
On its own it would be fine, but that's "A boy hears this woman" (or it's an acceptable interpretation of "A boy hears the woman").