Answer: The answer look right, but was there a story to these question?
If so can attach it so i can read make sure their right. I hope this helps!
"puso" would be the missing word.
La abuela no puso la leche ni el queso.
translation: The grandma didn't put the milk nor the cheese.
There are 74 animals. is your answer
Un is 'a,' masculine. Una is 'a,' feminine. Unos means 'some' or 'a few, ' masculine. Unas means 'some' or 'a few, ' feminine. That is just the answer. Enjoy