Hi, the sentences make sense, so you're good there. Maybe just work on the pronunciation of the words... Influence, behave, violence, aggressively. It's a lot harder when our accents affect the words but i think you work on those ones above. Otherwise good job.

I agree with Cassi above me but I think for it to flow better I'd say "she took a real chance taking him on"

I had to look this up because i wasn't sure how to explain this but the best explanation i found was this... The 'of' in " remained of human beings." serves as a connector between the two entities or adjectives. Typically one 'of' is belonging, in which the first word before the 'of' is the head of the phrase and the second word after the 'of' is something associated with it. So the head or belonging 'of' is 'remained' and the association or phrase is 'human remains' and the 'of' connects those two together. Another way i could put is... What are those remains made of? ... Human beings. Also, it means that the only thing remaining of the humans is just crud, bits and pieces nothing distinguishable. I hope this helped, and if im not explaining something correctly I apologize.