Yor friend has recently been gifted a mobile phone he spents all his time plying games on it ignorinhis studies and his friend this is effecting your relationship. disscuse how you could tell what you feel and what you could do to resolve the sitiuation.

i pretty sure it is old

explanation:

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."