the guests enjoying themselves?(be) ​

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."

depressed people should not argue

a lion king of the jungle he watch's his pray and watch out and go hunting for food and go fight   other animals to protect his cubs from getting hurt