We use muş - müş generally to tell what someone told us or to tell something we haven´t witnessed. We can translate it in many ways. S/he told that... is not the only way.  Because you can also use it when you are talking about a person´s deeds in the past you read in a book. Then you should use past perfect tense to cover muş -müş´s meaning. Also sometimes you have to use present perfect tense. Or you can cover its meaning with using apparently.

 not necessary.

 No clues. I want others to try it. You can learn your mistakes from me in private.

 I see two mistakes easily when I look at it. But you did a good job.

 Nope.

 bravo. then find your two mistakes.

Did you cheat? There are a few mistakes

Fill in the blanks correctly please. I will check them later. (Native speakers please dont interfere)

Keloğlan çok akıllıymış ancak akıllı oldu____ kadar da tembel____. Ana____ hadi oğlum, bahçe____ bir soğan al dese, iki saat düşü_____, üç saat hesap yapar, o soğanı bahçeden ayağına n_____ getirtebilir, onu düşünürmüş. Sonun____ bir yolu___ bulurmuş ama annesi de bu ara___ çıldırır durur____.

 correct

 Bravo. You can even translate a wrong Turkish sentence correctly. As you translated it must be "birliktelik" or "birlikte olmak" So no need for parenthesises